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Finding the Fourth Proportional to 110,812, 152,921.36 and 60,511

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Solution

The fourth proportional to 110,812, 152,921.36 and 60,511 is: 83,505.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,812 : 152,921.36 = 60,511 : x
  2. Step 2: Convert to fraction form
    110,812/152,921.36 = 60,511/x
  3. Step 3: Cross multiply
    110,812x = 152,921.36 × 60,511
  4. Step 4: Simplify right side
    110,812x = 9,253,424,414.96
  5. Step 5: Solve for x
    x = 9,253,424,414.96/110,812
  6. Step 6: Final answer
    x = 83,505.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.