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Finding the Fourth Proportional to 121,541.99, 182,001.13 and 84,050.33

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Solution

The fourth proportional to 121,541.99, 182,001.13 and 84,050.33 is: 125,859.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,541.99 : 182,001.13 = 84,050.33 : x
  2. Step 2: Convert to fraction form
    121,541.99/182,001.13 = 84,050.33/x
  3. Step 3: Cross multiply
    121,541.99x = 182,001.13 × 84,050.33
  4. Step 4: Simplify right side
    121,541.99x = 15,297,253,916.74
  5. Step 5: Solve for x
    x = 15,297,253,916.74/121,541.99
  6. Step 6: Final answer
    x = 125,859.83

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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.