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Finding the Fourth Proportional to 229,248.30, 343,872.86 and 79,488.88

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Solution

The fourth proportional to 229,248.30, 343,872.86 and 79,488.88 is: 119,233.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,248.30 : 343,872.86 = 79,488.88 : x
  2. Step 2: Convert to fraction form
    229,248.30/343,872.86 = 79,488.88/x
  3. Step 3: Cross multiply
    229,248.30x = 343,872.86 × 79,488.88
  4. Step 4: Simplify right side
    229,248.30x = 27,334,068,503.80
  5. Step 5: Solve for x
    x = 27,334,068,503.80/229,248.30
  6. Step 6: Final answer
    x = 119,233.46

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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.