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Finding the Fourth Proportional to 177,400.66, 244,810.90 and 100,917.97

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Solution

The fourth proportional to 177,400.66, 244,810.90 and 100,917.97 is: 139,265.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,400.66 : 244,810.90 = 100,917.97 : x
  2. Step 2: Convert to fraction form
    177,400.66/244,810.90 = 100,917.97/x
  3. Step 3: Cross multiply
    177,400.66x = 244,810.90 × 100,917.97
  4. Step 4: Simplify right side
    177,400.66x = 24,705,819,061.87
  5. Step 5: Solve for x
    x = 24,705,819,061.87/177,400.66
  6. Step 6: Final answer
    x = 139,265.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.