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Finding the Fourth Proportional to 63,838.80, 95,758.20 and 57,715.20

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Solution

The fourth proportional to 63,838.80, 95,758.20 and 57,715.20 is: 86,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,838.80 : 95,758.20 = 57,715.20 : x
  2. Step 2: Convert to fraction form
    63,838.80/95,758.20 = 57,715.20/x
  3. Step 3: Cross multiply
    63,838.80x = 95,758.20 × 57,715.20
  4. Step 4: Simplify right side
    63,838.80x = 5,526,703,664.64
  5. Step 5: Solve for x
    x = 5,526,703,664.64/63,838.80
  6. Step 6: Final answer
    x = 86,572.80

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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.