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Finding the Fourth Proportional to 79,500.66, 109,686.96 and 47,657.94

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Solution

The fourth proportional to 79,500.66, 109,686.96 and 47,657.94 is: 65,753.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,500.66 : 109,686.96 = 47,657.94 : x
  2. Step 2: Convert to fraction form
    79,500.66/109,686.96 = 47,657.94/x
  3. Step 3: Cross multiply
    79,500.66x = 109,686.96 × 47,657.94
  4. Step 4: Simplify right side
    79,500.66x = 5,227,454,558.46
  5. Step 5: Solve for x
    x = 5,227,454,558.46/79,500.66
  6. Step 6: Final answer
    x = 65,753.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.