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Finding the Fourth Proportional to 118,593.11, 177,959.51 and 43,765.91

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Solution

The fourth proportional to 118,593.11, 177,959.51 and 43,765.91 is: 65,674.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,593.11 : 177,959.51 = 43,765.91 : x
  2. Step 2: Convert to fraction form
    118,593.11/177,959.51 = 43,765.91/x
  3. Step 3: Cross multiply
    118,593.11x = 177,959.51 × 43,765.91
  4. Step 4: Simplify right side
    118,593.11x = 7,788,559,898.30
  5. Step 5: Solve for x
    x = 7,788,559,898.30/118,593.11
  6. Step 6: Final answer
    x = 65,674.64

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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.