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Finding the Fourth Proportional to 260,045.70, 390,068.55 and 176,064.90

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Solution

The fourth proportional to 260,045.70, 390,068.55 and 176,064.90 is: 264,097.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,045.70 : 390,068.55 = 176,064.90 : x
  2. Step 2: Convert to fraction form
    260,045.70/390,068.55 = 176,064.90/x
  3. Step 3: Cross multiply
    260,045.70x = 390,068.55 × 176,064.90
  4. Step 4: Simplify right side
    260,045.70x = 68,677,380,248.90
  5. Step 5: Solve for x
    x = 68,677,380,248.90/260,045.70
  6. Step 6: Final answer
    x = 264,097.35

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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.