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Finding the Fourth Proportional to 74,500.88, 111,752.76 and 59,640.72

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Solution

The fourth proportional to 74,500.88, 111,752.76 and 59,640.72 is: 89,462.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,500.88 : 111,752.76 = 59,640.72 : x
  2. Step 2: Convert to fraction form
    74,500.88/111,752.76 = 59,640.72/x
  3. Step 3: Cross multiply
    74,500.88x = 111,752.76 × 59,640.72
  4. Step 4: Simplify right side
    74,500.88x = 6,665,015,068.39
  5. Step 5: Solve for x
    x = 6,665,015,068.39/74,500.88
  6. Step 6: Final answer
    x = 89,462.23

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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.