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Finding the Fourth Proportional to 73,193.60, 100,931.20 and 62,618.24

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Solution

The fourth proportional to 73,193.60, 100,931.20 and 62,618.24 is: 86,348.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,193.60 : 100,931.20 = 62,618.24 : x
  2. Step 2: Convert to fraction form
    73,193.60/100,931.20 = 62,618.24/x
  3. Step 3: Cross multiply
    73,193.60x = 100,931.20 × 62,618.24
  4. Step 4: Simplify right side
    73,193.60x = 6,320,134,105.09
  5. Step 5: Solve for x
    x = 6,320,134,105.09/73,193.60
  6. Step 6: Final answer
    x = 86,348.18

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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.