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Finding the Fourth Proportional to 129,329.67, 193,937.96 and 65,248.40

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Solution

The fourth proportional to 129,329.67, 193,937.96 and 65,248.40 is: 97,844.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,329.67 : 193,937.96 = 65,248.40 : x
  2. Step 2: Convert to fraction form
    129,329.67/193,937.96 = 65,248.40/x
  3. Step 3: Cross multiply
    129,329.67x = 193,937.96 × 65,248.40
  4. Step 4: Simplify right side
    129,329.67x = 12,654,140,293.33
  5. Step 5: Solve for x
    x = 12,654,140,293.33/129,329.67
  6. Step 6: Final answer
    x = 97,844.06

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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.