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Finding the Fourth Proportional to 71,279.25, 106,845.08 and 58,666.76

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Solution

The fourth proportional to 71,279.25, 106,845.08 and 58,666.76 is: 87,939.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,279.25 : 106,845.08 = 58,666.76 : x
  2. Step 2: Convert to fraction form
    71,279.25/106,845.08 = 58,666.76/x
  3. Step 3: Cross multiply
    71,279.25x = 106,845.08 × 58,666.76
  4. Step 4: Simplify right side
    71,279.25x = 6,268,253,837.98
  5. Step 5: Solve for x
    x = 6,268,253,837.98/71,279.25
  6. Step 6: Final answer
    x = 87,939.39

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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.