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Finding the Fourth Proportional to 129,572.87, 193,897.40 and 89,599.97

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Solution

The fourth proportional to 129,572.87, 193,897.40 and 89,599.97 is: 134,080.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,572.87 : 193,897.40 = 89,599.97 : x
  2. Step 2: Convert to fraction form
    129,572.87/193,897.40 = 89,599.97/x
  3. Step 3: Cross multiply
    129,572.87x = 193,897.40 × 89,599.97
  4. Step 4: Simplify right side
    129,572.87x = 17,373,201,259.82
  5. Step 5: Solve for x
    x = 17,373,201,259.82/129,572.87
  6. Step 6: Final answer
    x = 134,080.55

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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.