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Finding the Fourth Proportional to 317,180.68, 475,724.54 and 92,480.76

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Solution

The fourth proportional to 317,180.68, 475,724.54 and 92,480.76 is: 138,707.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,180.68 : 475,724.54 = 92,480.76 : x
  2. Step 2: Convert to fraction form
    317,180.68/475,724.54 = 92,480.76/x
  3. Step 3: Cross multiply
    317,180.68x = 475,724.54 × 92,480.76
  4. Step 4: Simplify right side
    317,180.68x = 43,995,367,009.85
  5. Step 5: Solve for x
    x = 43,995,367,009.85/317,180.68
  6. Step 6: Final answer
    x = 138,707.59

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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.