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Finding the Fourth Proportional to 79,702.48, 110,025.92 and 56,747.18

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Solution

The fourth proportional to 79,702.48, 110,025.92 and 56,747.18 is: 78,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,702.48 : 110,025.92 = 56,747.18 : x
  2. Step 2: Convert to fraction form
    79,702.48/110,025.92 = 56,747.18/x
  3. Step 3: Cross multiply
    79,702.48x = 110,025.92 × 56,747.18
  4. Step 4: Simplify right side
    79,702.48x = 6,243,660,944.24
  5. Step 5: Solve for x
    x = 6,243,660,944.24/79,702.48
  6. Step 6: Final answer
    x = 78,337.10

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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.