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Finding the Fourth Proportional to 324,672.22, 487,106.88 and 156,144.72

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Solution

The fourth proportional to 324,672.22, 487,106.88 and 156,144.72 is: 234,264.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,672.22 : 487,106.88 = 156,144.72 : x
  2. Step 2: Convert to fraction form
    324,672.22/487,106.88 = 156,144.72/x
  3. Step 3: Cross multiply
    324,672.22x = 487,106.88 × 156,144.72
  4. Step 4: Simplify right side
    324,672.22x = 76,059,167,387.67
  5. Step 5: Solve for x
    x = 76,059,167,387.67/324,672.22
  6. Step 6: Final answer
    x = 234,264.48

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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.