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Finding the Fourth Proportional to 108,002.58, 149,043.18 and 60,255.90

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Solution

The fourth proportional to 108,002.58, 149,043.18 and 60,255.90 is: 83,152.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,002.58 : 149,043.18 = 60,255.90 : x
  2. Step 2: Convert to fraction form
    108,002.58/149,043.18 = 60,255.90/x
  3. Step 3: Cross multiply
    108,002.58x = 149,043.18 × 60,255.90
  4. Step 4: Simplify right side
    108,002.58x = 8,980,730,949.76
  5. Step 5: Solve for x
    x = 8,980,730,949.76/108,002.58
  6. Step 6: Final answer
    x = 83,152.93

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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.