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Finding the Fourth Proportional to 416,680.32, 625,020.66 and 117,192.72

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Solution

The fourth proportional to 416,680.32, 625,020.66 and 117,192.72 is: 175,789.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,680.32 : 625,020.66 = 117,192.72 : x
  2. Step 2: Convert to fraction form
    416,680.32/625,020.66 = 117,192.72/x
  3. Step 3: Cross multiply
    416,680.32x = 625,020.66 × 117,192.72
  4. Step 4: Simplify right side
    416,680.32x = 73,247,871,201.60
  5. Step 5: Solve for x
    x = 73,247,871,201.60/416,680.32
  6. Step 6: Final answer
    x = 175,789.13

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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.