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Finding the Fourth Proportional to 79,655.52, 119,416.32 and 53,279.76

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Solution

The fourth proportional to 79,655.52, 119,416.32 and 53,279.76 is: 79,874.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,655.52 : 119,416.32 = 53,279.76 : x
  2. Step 2: Convert to fraction form
    79,655.52/119,416.32 = 53,279.76/x
  3. Step 3: Cross multiply
    79,655.52x = 119,416.32 × 53,279.76
  4. Step 4: Simplify right side
    79,655.52x = 6,362,472,869.68
  5. Step 5: Solve for x
    x = 6,362,472,869.68/79,655.52
  6. Step 6: Final answer
    x = 79,874.85

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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.