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Finding the Fourth Proportional to 72,397.70, 99,908.84 and 44,103.38

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Solution

The fourth proportional to 72,397.70, 99,908.84 and 44,103.38 is: 60,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,397.70 : 99,908.84 = 44,103.38 : x
  2. Step 2: Convert to fraction form
    72,397.70/99,908.84 = 44,103.38/x
  3. Step 3: Cross multiply
    72,397.70x = 99,908.84 × 44,103.38
  4. Step 4: Simplify right side
    72,397.70x = 4,406,317,895.91
  5. Step 5: Solve for x
    x = 4,406,317,895.91/72,397.70
  6. Step 6: Final answer
    x = 60,862.68

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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.