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Finding the Fourth Proportional to 121,432.59, 182,164.14 and 65,195.40

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Solution

The fourth proportional to 121,432.59, 182,164.14 and 65,195.40 is: 97,801.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,432.59 : 182,164.14 = 65,195.40 : x
  2. Step 2: Convert to fraction form
    121,432.59/182,164.14 = 65,195.40/x
  3. Step 3: Cross multiply
    121,432.59x = 182,164.14 × 65,195.40
  4. Step 4: Simplify right side
    121,432.59x = 11,876,263,972.96
  5. Step 5: Solve for x
    x = 11,876,263,972.96/121,432.59
  6. Step 6: Final answer
    x = 97,801.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.