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Finding the Fourth Proportional to 121,903.97, 182,810.47 and 41,919.31

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Solution

The fourth proportional to 121,903.97, 182,810.47 and 41,919.31 is: 62,863.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,903.97 : 182,810.47 = 41,919.31 : x
  2. Step 2: Convert to fraction form
    121,903.97/182,810.47 = 41,919.31/x
  3. Step 3: Cross multiply
    121,903.97x = 182,810.47 × 41,919.31
  4. Step 4: Simplify right side
    121,903.97x = 7,663,288,201.35
  5. Step 5: Solve for x
    x = 7,663,288,201.35/121,903.97
  6. Step 6: Final answer
    x = 62,863.32

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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.