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Finding the Fourth Proportional to 108,658.13, 149,948.76 and 63,367.52

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Solution

The fourth proportional to 108,658.13, 149,948.76 and 63,367.52 is: 87,447.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,658.13 : 149,948.76 = 63,367.52 : x
  2. Step 2: Convert to fraction form
    108,658.13/149,948.76 = 63,367.52/x
  3. Step 3: Cross multiply
    108,658.13x = 149,948.76 × 63,367.52
  4. Step 4: Simplify right side
    108,658.13x = 9,501,880,298.53
  5. Step 5: Solve for x
    x = 9,501,880,298.53/108,658.13
  6. Step 6: Final answer
    x = 87,447.49

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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.