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Finding the Fourth Proportional to 83,808.96, 125,630.40 and 39,356.14

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Solution

The fourth proportional to 83,808.96, 125,630.40 and 39,356.14 is: 58,995.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,808.96 : 125,630.40 = 39,356.14 : x
  2. Step 2: Convert to fraction form
    83,808.96/125,630.40 = 39,356.14/x
  3. Step 3: Cross multiply
    83,808.96x = 125,630.40 × 39,356.14
  4. Step 4: Simplify right side
    83,808.96x = 4,944,327,610.66
  5. Step 5: Solve for x
    x = 4,944,327,610.66/83,808.96
  6. Step 6: Final answer
    x = 58,995.21

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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.