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Finding the Fourth Proportional to 247,187.69, 370,781.54 and 114,028.55

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Solution

The fourth proportional to 247,187.69, 370,781.54 and 114,028.55 is: 171,042.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,187.69 : 370,781.54 = 114,028.55 : x
  2. Step 2: Convert to fraction form
    247,187.69/370,781.54 = 114,028.55/x
  3. Step 3: Cross multiply
    247,187.69x = 370,781.54 × 114,028.55
  4. Step 4: Simplify right side
    247,187.69x = 42,279,678,948.92
  5. Step 5: Solve for x
    x = 42,279,678,948.92/247,187.69
  6. Step 6: Final answer
    x = 171,042.82

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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.