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Finding the Fourth Proportional to 59,723.20, 89,455.20 and 49,355.20

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Solution

The fourth proportional to 59,723.20, 89,455.20 and 49,355.20 is: 73,925.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,723.20 : 89,455.20 = 49,355.20 : x
  2. Step 2: Convert to fraction form
    59,723.20/89,455.20 = 49,355.20/x
  3. Step 3: Cross multiply
    59,723.20x = 89,455.20 × 49,355.20
  4. Step 4: Simplify right side
    59,723.20x = 4,415,079,287.04
  5. Step 5: Solve for x
    x = 4,415,079,287.04/59,723.20
  6. Step 6: Final answer
    x = 73,925.70

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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.