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Finding the Fourth Proportional to 416,601, 625,008.06 and 121,113

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Solution

The fourth proportional to 416,601, 625,008.06 and 121,113 is: 181,700.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,601 : 625,008.06 = 121,113 : x
  2. Step 2: Convert to fraction form
    416,601/625,008.06 = 121,113/x
  3. Step 3: Cross multiply
    416,601x = 625,008.06 × 121,113
  4. Step 4: Simplify right side
    416,601x = 75,696,601,170.78
  5. Step 5: Solve for x
    x = 75,696,601,170.78/416,601
  6. Step 6: Final answer
    x = 181,700.48

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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.