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Finding the Fourth Proportional to 118,626.17, 177,920.42 and 55,490.11

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Solution

The fourth proportional to 118,626.17, 177,920.42 and 55,490.11 is: 83,226.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,626.17 : 177,920.42 = 55,490.11 : x
  2. Step 2: Convert to fraction form
    118,626.17/177,920.42 = 55,490.11/x
  3. Step 3: Cross multiply
    118,626.17x = 177,920.42 × 55,490.11
  4. Step 4: Simplify right side
    118,626.17x = 9,872,822,954.79
  5. Step 5: Solve for x
    x = 9,872,822,954.79/118,626.17
  6. Step 6: Final answer
    x = 83,226.35

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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.