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Finding the Fourth Proportional to 71,044.65, 98,034.64 and 39,211.49

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Solution

The fourth proportional to 71,044.65, 98,034.64 and 39,211.49 is: 54,108.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,044.65 : 98,034.64 = 39,211.49 : x
  2. Step 2: Convert to fraction form
    71,044.65/98,034.64 = 39,211.49/x
  3. Step 3: Cross multiply
    71,044.65x = 98,034.64 × 39,211.49
  4. Step 4: Simplify right side
    71,044.65x = 3,844,084,453.07
  5. Step 5: Solve for x
    x = 3,844,084,453.07/71,044.65
  6. Step 6: Final answer
    x = 54,108.01

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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.