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Finding the Fourth Proportional to 229,393.80, 344,094.15 and 79,638.85

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Solution

The fourth proportional to 229,393.80, 344,094.15 and 79,638.85 is: 119,459.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,393.80 : 344,094.15 = 79,638.85 : x
  2. Step 2: Convert to fraction form
    229,393.80/344,094.15 = 79,638.85/x
  3. Step 3: Cross multiply
    229,393.80x = 344,094.15 × 79,638.85
  4. Step 4: Simplify right side
    229,393.80x = 27,403,262,397.73
  5. Step 5: Solve for x
    x = 27,403,262,397.73/229,393.80
  6. Step 6: Final answer
    x = 119,459.47

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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.