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Finding the Fourth Proportional to 229,013.57, 343,543.95 and 79,253.64

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Solution

The fourth proportional to 229,013.57, 343,543.95 and 79,253.64 is: 118,888.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,013.57 : 343,543.95 = 79,253.64 : x
  2. Step 2: Convert to fraction form
    229,013.57/343,543.95 = 79,253.64/x
  3. Step 3: Cross multiply
    229,013.57x = 343,543.95 × 79,253.64
  4. Step 4: Simplify right side
    229,013.57x = 27,227,108,537.48
  5. Step 5: Solve for x
    x = 27,227,108,537.48/229,013.57
  6. Step 6: Final answer
    x = 118,888.63

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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.