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Finding the Fourth Proportional to 275,041.88, 412,723.65 and 115,104.44

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Solution

The fourth proportional to 275,041.88, 412,723.65 and 115,104.44 is: 172,723.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,041.88 : 412,723.65 = 115,104.44 : x
  2. Step 2: Convert to fraction form
    275,041.88/412,723.65 = 115,104.44/x
  3. Step 3: Cross multiply
    275,041.88x = 412,723.65 × 115,104.44
  4. Step 4: Simplify right side
    275,041.88x = 47,506,326,071.46
  5. Step 5: Solve for x
    x = 47,506,326,071.46/275,041.88
  6. Step 6: Final answer
    x = 172,723.97

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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.