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Finding the Fourth Proportional to 121,443.92, 182,178.02 and 37,203.11

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Solution

The fourth proportional to 121,443.92, 182,178.02 and 37,203.11 is: 55,808.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,443.92 : 182,178.02 = 37,203.11 : x
  2. Step 2: Convert to fraction form
    121,443.92/182,178.02 = 37,203.11/x
  3. Step 3: Cross multiply
    121,443.92x = 182,178.02 × 37,203.11
  4. Step 4: Simplify right side
    121,443.92x = 6,777,587,820.74
  5. Step 5: Solve for x
    x = 6,777,587,820.74/121,443.92
  6. Step 6: Final answer
    x = 55,808.38

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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.