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Finding the Fourth Proportional to 118,468.80, 177,773.40 and 43,641.54

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Solution

The fourth proportional to 118,468.80, 177,773.40 and 43,641.54 is: 65,488.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,468.80 : 177,773.40 = 43,641.54 : x
  2. Step 2: Convert to fraction form
    118,468.80/177,773.40 = 43,641.54/x
  3. Step 3: Cross multiply
    118,468.80x = 177,773.40 × 43,641.54
  4. Step 4: Simplify right side
    118,468.80x = 7,758,304,947.04
  5. Step 5: Solve for x
    x = 7,758,304,947.04/118,468.80
  6. Step 6: Final answer
    x = 65,488.17

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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.