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Finding the Fourth Proportional to 353,117.20, 529,675.80 and 187,229.20

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Solution

The fourth proportional to 353,117.20, 529,675.80 and 187,229.20 is: 280,843.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,117.20 : 529,675.80 = 187,229.20 : x
  2. Step 2: Convert to fraction form
    353,117.20/529,675.80 = 187,229.20/x
  3. Step 3: Cross multiply
    353,117.20x = 529,675.80 × 187,229.20
  4. Step 4: Simplify right side
    353,117.20x = 99,170,776,293.36
  5. Step 5: Solve for x
    x = 99,170,776,293.36/353,117.20
  6. Step 6: Final answer
    x = 280,843.80

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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.