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Finding the Fourth Proportional to 118,401.54, 177,672.35 and 43,574.23

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Solution

The fourth proportional to 118,401.54, 177,672.35 and 43,574.23 is: 65,387.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,401.54 : 177,672.35 = 43,574.23 : x
  2. Step 2: Convert to fraction form
    118,401.54/177,672.35 = 43,574.23/x
  3. Step 3: Cross multiply
    118,401.54x = 177,672.35 × 43,574.23
  4. Step 4: Simplify right side
    118,401.54x = 7,741,935,843.54
  5. Step 5: Solve for x
    x = 7,741,935,843.54/118,401.54
  6. Step 6: Final answer
    x = 65,387.12

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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.