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Finding the Fourth Proportional to 229,391.68, 344,090.98 and 79,636.72

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Solution

The fourth proportional to 229,391.68, 344,090.98 and 79,636.72 is: 119,456.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,391.68 : 344,090.98 = 79,636.72 : x
  2. Step 2: Convert to fraction form
    229,391.68/344,090.98 = 79,636.72/x
  3. Step 3: Cross multiply
    229,391.68x = 344,090.98 × 79,636.72
  4. Step 4: Simplify right side
    229,391.68x = 27,402,278,158.89
  5. Step 5: Solve for x
    x = 27,402,278,158.89/229,391.68
  6. Step 6: Final answer
    x = 119,456.29

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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.