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Finding the Fourth Proportional to 83,808.71, 125,630.03 and 39,355.89

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Solution

The fourth proportional to 83,808.71, 125,630.03 and 39,355.89 is: 58,994.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,808.71 : 125,630.03 = 39,355.89 : x
  2. Step 2: Convert to fraction form
    83,808.71/125,630.03 = 39,355.89/x
  3. Step 3: Cross multiply
    83,808.71x = 125,630.03 × 39,355.89
  4. Step 4: Simplify right side
    83,808.71x = 4,944,281,444.60
  5. Step 5: Solve for x
    x = 4,944,281,444.60/83,808.71
  6. Step 6: Final answer
    x = 58,994.84

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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.