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Finding the Fourth Proportional to 88,800.75, 133,266.87 and 42,053.76

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Solution

The fourth proportional to 88,800.75, 133,266.87 and 42,053.76 is: 63,111.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,800.75 : 133,266.87 = 42,053.76 : x
  2. Step 2: Convert to fraction form
    88,800.75/133,266.87 = 42,053.76/x
  3. Step 3: Cross multiply
    88,800.75x = 133,266.87 × 42,053.76
  4. Step 4: Simplify right side
    88,800.75x = 5,604,372,966.93
  5. Step 5: Solve for x
    x = 5,604,372,966.93/88,800.75
  6. Step 6: Final answer
    x = 63,111.78

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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.