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Finding the Fourth Proportional to 110,670.80, 152,710.30 and 62,918.87

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Solution

The fourth proportional to 110,670.80, 152,710.30 and 62,918.87 is: 86,819.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,670.80 : 152,710.30 = 62,918.87 : x
  2. Step 2: Convert to fraction form
    110,670.80/152,710.30 = 62,918.87/x
  3. Step 3: Cross multiply
    110,670.80x = 152,710.30 × 62,918.87
  4. Step 4: Simplify right side
    110,670.80x = 9,608,359,737.84
  5. Step 5: Solve for x
    x = 9,608,359,737.84/110,670.80
  6. Step 6: Final answer
    x = 86,819.28

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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.