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Finding the Fourth Proportional to 108,211.64, 149,332.80 and 60,467

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Solution

The fourth proportional to 108,211.64, 149,332.80 and 60,467 is: 83,444.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,211.64 : 149,332.80 = 60,467 : x
  2. Step 2: Convert to fraction form
    108,211.64/149,332.80 = 60,467/x
  3. Step 3: Cross multiply
    108,211.64x = 149,332.80 × 60,467
  4. Step 4: Simplify right side
    108,211.64x = 9,029,706,417.60
  5. Step 5: Solve for x
    x = 9,029,706,417.60/108,211.64
  6. Step 6: Final answer
    x = 83,444.87

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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.