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Finding the Fourth Proportional to 108,393.19, 149,582.60 and 60,655.76

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Solution

The fourth proportional to 108,393.19, 149,582.60 and 60,655.76 is: 83,704.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,393.19 : 149,582.60 = 60,655.76 : x
  2. Step 2: Convert to fraction form
    108,393.19/149,582.60 = 60,655.76/x
  3. Step 3: Cross multiply
    108,393.19x = 149,582.60 × 60,655.76
  4. Step 4: Simplify right side
    108,393.19x = 9,073,046,443.68
  5. Step 5: Solve for x
    x = 9,073,046,443.68/108,393.19
  6. Step 6: Final answer
    x = 83,704.95

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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.