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Finding the Fourth Proportional to 109,398.56, 150,966.28 and 60,342.12

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Solution

The fourth proportional to 109,398.56, 150,966.28 and 60,342.12 is: 83,270.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,398.56 : 150,966.28 = 60,342.12 : x
  2. Step 2: Convert to fraction form
    109,398.56/150,966.28 = 60,342.12/x
  3. Step 3: Cross multiply
    109,398.56x = 150,966.28 × 60,342.12
  4. Step 4: Simplify right side
    109,398.56x = 9,109,625,251.78
  5. Step 5: Solve for x
    x = 9,109,625,251.78/109,398.56
  6. Step 6: Final answer
    x = 83,270.07

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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.