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Finding the Fourth Proportional to 83,913.74, 115,801.90 and 45,673.52

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Solution

The fourth proportional to 83,913.74, 115,801.90 and 45,673.52 is: 63,029.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,913.74 : 115,801.90 = 45,673.52 : x
  2. Step 2: Convert to fraction form
    83,913.74/115,801.90 = 45,673.52/x
  3. Step 3: Cross multiply
    83,913.74x = 115,801.90 × 45,673.52
  4. Step 4: Simplify right side
    83,913.74x = 5,289,080,395.69
  5. Step 5: Solve for x
    x = 5,289,080,395.69/83,913.74
  6. Step 6: Final answer
    x = 63,029.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.