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Finding the Fourth Proportional to 88,997.78, 133,518.51 and 40,943.90

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Solution

The fourth proportional to 88,997.78, 133,518.51 and 40,943.90 is: 61,425.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,997.78 : 133,518.51 = 40,943.90 : x
  2. Step 2: Convert to fraction form
    88,997.78/133,518.51 = 40,943.90/x
  3. Step 3: Cross multiply
    88,997.78x = 133,518.51 × 40,943.90
  4. Step 4: Simplify right side
    88,997.78x = 5,466,767,854.00
  5. Step 5: Solve for x
    x = 5,466,767,854.00/88,997.78
  6. Step 6: Final answer
    x = 61,425.89

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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.