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Finding the Fourth Proportional to 140,079.88, 193,275.78 and 89,846.92

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Solution

The fourth proportional to 140,079.88, 193,275.78 and 89,846.92 is: 123,966.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,079.88 : 193,275.78 = 89,846.92 : x
  2. Step 2: Convert to fraction form
    140,079.88/193,275.78 = 89,846.92/x
  3. Step 3: Cross multiply
    140,079.88x = 193,275.78 × 89,846.92
  4. Step 4: Simplify right side
    140,079.88x = 17,365,233,543.60
  5. Step 5: Solve for x
    x = 17,365,233,543.60/140,079.88
  6. Step 6: Final answer
    x = 123,966.65

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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.