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Finding the Fourth Proportional to 71,119.60, 106,938.60 and 59,714.80

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Solution

The fourth proportional to 71,119.60, 106,938.60 and 59,714.80 is: 89,789.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,119.60 : 106,938.60 = 59,714.80 : x
  2. Step 2: Convert to fraction form
    71,119.60/106,938.60 = 59,714.80/x
  3. Step 3: Cross multiply
    71,119.60x = 106,938.60 × 59,714.80
  4. Step 4: Simplify right side
    71,119.60x = 6,385,817,111.28
  5. Step 5: Solve for x
    x = 6,385,817,111.28/71,119.60
  6. Step 6: Final answer
    x = 89,789.83

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1.5x scale

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.