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Finding the Fourth Proportional to 83,080.08, 124,401.42 and 49,721.04

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Solution

The fourth proportional to 83,080.08, 124,401.42 and 49,721.04 is: 74,450.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,080.08 : 124,401.42 = 49,721.04 : x
  2. Step 2: Convert to fraction form
    83,080.08/124,401.42 = 49,721.04/x
  3. Step 3: Cross multiply
    83,080.08x = 124,401.42 × 49,721.04
  4. Step 4: Simplify right side
    83,080.08x = 6,185,367,979.88
  5. Step 5: Solve for x
    x = 6,185,367,979.88/83,080.08
  6. Step 6: Final answer
    x = 74,450.67

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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.