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Finding the Fourth Proportional to 185,689.98, 256,463.22 and 125,156.28

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Solution

The fourth proportional to 185,689.98, 256,463.22 and 125,156.28 is: 172,857.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,689.98 : 256,463.22 = 125,156.28 : x
  2. Step 2: Convert to fraction form
    185,689.98/256,463.22 = 125,156.28/x
  3. Step 3: Cross multiply
    185,689.98x = 256,463.22 × 125,156.28
  4. Step 4: Simplify right side
    185,689.98x = 32,097,982,572.02
  5. Step 5: Solve for x
    x = 32,097,982,572.02/185,689.98
  6. Step 6: Final answer
    x = 172,857.91

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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.