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Finding the Fourth Proportional to 59,139.20, 88,579.20 and 51,363.20

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Solution

The fourth proportional to 59,139.20, 88,579.20 and 51,363.20 is: 76,932.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,139.20 : 88,579.20 = 51,363.20 : x
  2. Step 2: Convert to fraction form
    59,139.20/88,579.20 = 51,363.20/x
  3. Step 3: Cross multiply
    59,139.20x = 88,579.20 × 51,363.20
  4. Step 4: Simplify right side
    59,139.20x = 4,549,711,165.44
  5. Step 5: Solve for x
    x = 4,549,711,165.44/59,139.20
  6. Step 6: Final answer
    x = 76,932.24

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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.