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Finding the Fourth Proportional to 118,589.80, 177,908.51 and 43,710.31

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Solution

The fourth proportional to 118,589.80, 177,908.51 and 43,710.31 is: 65,574.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,589.80 : 177,908.51 = 43,710.31 : x
  2. Step 2: Convert to fraction form
    118,589.80/177,908.51 = 43,710.31/x
  3. Step 3: Cross multiply
    118,589.80x = 177,908.51 × 43,710.31
  4. Step 4: Simplify right side
    118,589.80x = 7,776,436,123.74
  5. Step 5: Solve for x
    x = 7,776,436,123.74/118,589.80
  6. Step 6: Final answer
    x = 65,574.24

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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.