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Finding the Fourth Proportional to 324,884.69, 487,410.15 and 125,151.45

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Solution

The fourth proportional to 324,884.69, 487,410.15 and 125,151.45 is: 187,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,884.69 : 487,410.15 = 125,151.45 : x
  2. Step 2: Convert to fraction form
    324,884.69/487,410.15 = 125,151.45/x
  3. Step 3: Cross multiply
    324,884.69x = 487,410.15 × 125,151.45
  4. Step 4: Simplify right side
    324,884.69x = 61,000,087,017.22
  5. Step 5: Solve for x
    x = 61,000,087,017.22/324,884.69
  6. Step 6: Final answer
    x = 187,759.20

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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.