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Finding the Fourth Proportional to 71,605.07, 107,393.49 and 68,048.24

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Solution

The fourth proportional to 71,605.07, 107,393.49 and 68,048.24 is: 102,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,605.07 : 107,393.49 = 68,048.24 : x
  2. Step 2: Convert to fraction form
    71,605.07/107,393.49 = 68,048.24/x
  3. Step 3: Cross multiply
    71,605.07x = 107,393.49 × 68,048.24
  4. Step 4: Simplify right side
    71,605.07x = 7,307,937,981.96
  5. Step 5: Solve for x
    x = 7,307,937,981.96/71,605.07
  6. Step 6: Final answer
    x = 102,058.95

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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.