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Finding the Fourth Proportional to 73,151.24, 100,948.90 and 39,617.24

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Solution

The fourth proportional to 73,151.24, 100,948.90 and 39,617.24 is: 54,671.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,151.24 : 100,948.90 = 39,617.24 : x
  2. Step 2: Convert to fraction form
    73,151.24/100,948.90 = 39,617.24/x
  3. Step 3: Cross multiply
    73,151.24x = 100,948.90 × 39,617.24
  4. Step 4: Simplify right side
    73,151.24x = 3,999,316,799.04
  5. Step 5: Solve for x
    x = 3,999,316,799.04/73,151.24
  6. Step 6: Final answer
    x = 54,671.89

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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.