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Finding the Fourth Proportional to 58,793.10, 88,043.85 and 47,129.10

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Solution

The fourth proportional to 58,793.10, 88,043.85 and 47,129.10 is: 70,576.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,793.10 : 88,043.85 = 47,129.10 : x
  2. Step 2: Convert to fraction form
    58,793.10/88,043.85 = 47,129.10/x
  3. Step 3: Cross multiply
    58,793.10x = 88,043.85 × 47,129.10
  4. Step 4: Simplify right side
    58,793.10x = 4,149,427,411.04
  5. Step 5: Solve for x
    x = 4,149,427,411.04/58,793.10
  6. Step 6: Final answer
    x = 70,576.78

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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.