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Finding the Fourth Proportional to 88,829.70, 133,025.85 and 42,027.90

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Solution

The fourth proportional to 88,829.70, 133,025.85 and 42,027.90 is: 62,938.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,829.70 : 133,025.85 = 42,027.90 : x
  2. Step 2: Convert to fraction form
    88,829.70/133,025.85 = 42,027.90/x
  3. Step 3: Cross multiply
    88,829.70x = 133,025.85 × 42,027.90
  4. Step 4: Simplify right side
    88,829.70x = 5,590,797,121.22
  5. Step 5: Solve for x
    x = 5,590,797,121.22/88,829.70
  6. Step 6: Final answer
    x = 62,938.38

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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.