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Finding the Fourth Proportional to 229,959.17, 344,994.29 and 72,187.62

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Solution

The fourth proportional to 229,959.17, 344,994.29 and 72,187.62 is: 108,298.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,959.17 : 344,994.29 = 72,187.62 : x
  2. Step 2: Convert to fraction form
    229,959.17/344,994.29 = 72,187.62/x
  3. Step 3: Cross multiply
    229,959.17x = 344,994.29 × 72,187.62
  4. Step 4: Simplify right side
    229,959.17x = 24,904,316,347.75
  5. Step 5: Solve for x
    x = 24,904,316,347.75/229,959.17
  6. Step 6: Final answer
    x = 108,298.86

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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.