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Finding the Fourth Proportional to 71,223.68, 98,192.49 and 45,685.71

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Solution

The fourth proportional to 71,223.68, 98,192.49 and 45,685.71 is: 62,984.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,223.68 : 98,192.49 = 45,685.71 : x
  2. Step 2: Convert to fraction form
    71,223.68/98,192.49 = 45,685.71/x
  3. Step 3: Cross multiply
    71,223.68x = 98,192.49 × 45,685.71
  4. Step 4: Simplify right side
    71,223.68x = 4,485,993,131.36
  5. Step 5: Solve for x
    x = 4,485,993,131.36/71,223.68
  6. Step 6: Final answer
    x = 62,984.58

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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.