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Finding the Fourth Proportional to 120,116.52, 165,760.76 and 67,124.52

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Solution

The fourth proportional to 120,116.52, 165,760.76 and 67,124.52 is: 92,631.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,116.52 : 165,760.76 = 67,124.52 : x
  2. Step 2: Convert to fraction form
    120,116.52/165,760.76 = 67,124.52/x
  3. Step 3: Cross multiply
    120,116.52x = 165,760.76 × 67,124.52
  4. Step 4: Simplify right side
    120,116.52x = 11,126,611,449.84
  5. Step 5: Solve for x
    x = 11,126,611,449.84/120,116.52
  6. Step 6: Final answer
    x = 92,631.82

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1.5x scale

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.