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Finding the Fourth Proportional to 157,151.87, 216,869.58 and 85,532.41

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Solution

The fourth proportional to 157,151.87, 216,869.58 and 85,532.41 is: 118,034.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,151.87 : 216,869.58 = 85,532.41 : x
  2. Step 2: Convert to fraction form
    157,151.87/216,869.58 = 85,532.41/x
  3. Step 3: Cross multiply
    157,151.87x = 216,869.58 × 85,532.41
  4. Step 4: Simplify right side
    157,151.87x = 18,549,378,104.17
  5. Step 5: Solve for x
    x = 18,549,378,104.17/157,151.87
  6. Step 6: Final answer
    x = 118,034.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.