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Finding the Fourth Proportional to 108,229.40, 149,359.78 and 60,482.88

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Solution

The fourth proportional to 108,229.40, 149,359.78 and 60,482.88 is: 83,468.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,229.40 : 149,359.78 = 60,482.88 : x
  2. Step 2: Convert to fraction form
    108,229.40/149,359.78 = 60,482.88/x
  3. Step 3: Cross multiply
    108,229.40x = 149,359.78 × 60,482.88
  4. Step 4: Simplify right side
    108,229.40x = 9,033,709,650.57
  5. Step 5: Solve for x
    x = 9,033,709,650.57/108,229.40
  6. Step 6: Final answer
    x = 83,468.17

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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.