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Finding the Fourth Proportional to 93,432.80, 140,149.20 and 54,066.80

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Solution

The fourth proportional to 93,432.80, 140,149.20 and 54,066.80 is: 81,100.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,432.80 : 140,149.20 = 54,066.80 : x
  2. Step 2: Convert to fraction form
    93,432.80/140,149.20 = 54,066.80/x
  3. Step 3: Cross multiply
    93,432.80x = 140,149.20 × 54,066.80
  4. Step 4: Simplify right side
    93,432.80x = 7,577,418,766.56
  5. Step 5: Solve for x
    x = 7,577,418,766.56/93,432.80
  6. Step 6: Final answer
    x = 81,100.20

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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.