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Finding the Fourth Proportional to 173,397.60, 260,096.40 and 90,280.80

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Solution

The fourth proportional to 173,397.60, 260,096.40 and 90,280.80 is: 135,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,397.60 : 260,096.40 = 90,280.80 : x
  2. Step 2: Convert to fraction form
    173,397.60/260,096.40 = 90,280.80/x
  3. Step 3: Cross multiply
    173,397.60x = 260,096.40 × 90,280.80
  4. Step 4: Simplify right side
    173,397.60x = 23,481,711,069.12
  5. Step 5: Solve for x
    x = 23,481,711,069.12/173,397.60
  6. Step 6: Final answer
    x = 135,421.20

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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.