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Finding the Fourth Proportional to 71,975.03, 99,274.12 and 62,397.79

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Solution

The fourth proportional to 71,975.03, 99,274.12 and 62,397.79 is: 86,064.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,975.03 : 99,274.12 = 62,397.79 : x
  2. Step 2: Convert to fraction form
    71,975.03/99,274.12 = 62,397.79/x
  3. Step 3: Cross multiply
    71,975.03x = 99,274.12 × 62,397.79
  4. Step 4: Simplify right side
    71,975.03x = 6,194,485,692.19
  5. Step 5: Solve for x
    x = 6,194,485,692.19/71,975.03
  6. Step 6: Final answer
    x = 86,064.37

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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.