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Finding the Fourth Proportional to 108,367.61, 149,553.11 and 60,618.11

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Solution

The fourth proportional to 108,367.61, 149,553.11 and 60,618.11 is: 83,656.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,367.61 : 149,553.11 = 60,618.11 : x
  2. Step 2: Convert to fraction form
    108,367.61/149,553.11 = 60,618.11/x
  3. Step 3: Cross multiply
    108,367.61x = 149,553.11 × 60,618.11
  4. Step 4: Simplify right side
    108,367.61x = 9,065,626,872.82
  5. Step 5: Solve for x
    x = 9,065,626,872.82/108,367.61
  6. Step 6: Final answer
    x = 83,656.24

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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.