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Finding the Fourth Proportional to 91,008.57, 125,600.71 and 67,998.46

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Solution

The fourth proportional to 91,008.57, 125,600.71 and 67,998.46 is: 93,844.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,008.57 : 125,600.71 = 67,998.46 : x
  2. Step 2: Convert to fraction form
    91,008.57/125,600.71 = 67,998.46/x
  3. Step 3: Cross multiply
    91,008.57x = 125,600.71 × 67,998.46
  4. Step 4: Simplify right side
    91,008.57x = 8,540,655,087.16
  5. Step 5: Solve for x
    x = 8,540,655,087.16/91,008.57
  6. Step 6: Final answer
    x = 93,844.52

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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.