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Finding the Fourth Proportional to 187,422.20, 281,155.16 and 187,422.20

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Solution

The fourth proportional to 187,422.20, 281,155.16 and 187,422.20 is: 281,155.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,422.20 : 281,155.16 = 187,422.20 : x
  2. Step 2: Convert to fraction form
    187,422.20/281,155.16 = 187,422.20/x
  3. Step 3: Cross multiply
    187,422.20x = 281,155.16 × 187,422.20
  4. Step 4: Simplify right side
    187,422.20x = 52,694,718,628.55
  5. Step 5: Solve for x
    x = 52,694,718,628.55/187,422.20
  6. Step 6: Final answer
    x = 281,155.16

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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.