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Finding the Fourth Proportional to 110,658.42, 152,707.90 and 62,911.78

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Solution

The fourth proportional to 110,658.42, 152,707.90 and 62,911.78 is: 86,817.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,658.42 : 152,707.90 = 62,911.78 : x
  2. Step 2: Convert to fraction form
    110,658.42/152,707.90 = 62,911.78/x
  3. Step 3: Cross multiply
    110,658.42x = 152,707.90 × 62,911.78
  4. Step 4: Simplify right side
    110,658.42x = 9,607,125,809.06
  5. Step 5: Solve for x
    x = 9,607,125,809.06/110,658.42
  6. Step 6: Final answer
    x = 86,817.85

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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.