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Finding the Fourth Proportional to 171,753.48, 257,350.10 and 87,397.65

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Solution

The fourth proportional to 171,753.48, 257,350.10 and 87,397.65 is: 130,953.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,753.48 : 257,350.10 = 87,397.65 : x
  2. Step 2: Convert to fraction form
    171,753.48/257,350.10 = 87,397.65/x
  3. Step 3: Cross multiply
    171,753.48x = 257,350.10 × 87,397.65
  4. Step 4: Simplify right side
    171,753.48x = 22,491,793,530.28
  5. Step 5: Solve for x
    x = 22,491,793,530.28/171,753.48
  6. Step 6: Final answer
    x = 130,953.93

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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.