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Finding the Fourth Proportional to 271,506,724.80, 407,260,087.20 and 89,753,902.80

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Solution

The fourth proportional to 271,506,724.80, 407,260,087.20 and 89,753,902.80 is: 134,630,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,506,724.80 : 407,260,087.20 = 89,753,902.80 : x
  2. Step 2: Convert to fraction form
    271,506,724.80/407,260,087.20 = 89,753,902.80/x
  3. Step 3: Cross multiply
    271,506,724.80x = 407,260,087.20 × 89,753,902.80
  4. Step 4: Simplify right side
    271,506,724.80x = 36,553,182,280,868,320
  5. Step 5: Solve for x
    x = 36,553,182,280,868,320/271,506,724.80
  6. Step 6: Final answer
    x = 134,630,854.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.