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Finding the Fourth Proportional to 185,691.98, 256,465.98 and 125,158.28

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Solution

The fourth proportional to 185,691.98, 256,465.98 and 125,158.28 is: 172,860.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,691.98 : 256,465.98 = 125,158.28 : x
  2. Step 2: Convert to fraction form
    185,691.98/256,465.98 = 125,158.28/x
  3. Step 3: Cross multiply
    185,691.98x = 256,465.98 × 125,158.28
  4. Step 4: Simplify right side
    185,691.98x = 32,098,840,935.31
  5. Step 5: Solve for x
    x = 32,098,840,935.31/185,691.98
  6. Step 6: Final answer
    x = 172,860.67

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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.