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Finding the Fourth Proportional to 247,791.72, 370,769.04 and 148,006.20

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Solution

The fourth proportional to 247,791.72, 370,769.04 and 148,006.20 is: 221,460.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,791.72 : 370,769.04 = 148,006.20 : x
  2. Step 2: Convert to fraction form
    247,791.72/370,769.04 = 148,006.20/x
  3. Step 3: Cross multiply
    247,791.72x = 370,769.04 × 148,006.20
  4. Step 4: Simplify right side
    247,791.72x = 54,876,116,688.05
  5. Step 5: Solve for x
    x = 54,876,116,688.05/247,791.72
  6. Step 6: Final answer
    x = 221,460.66

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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.