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Finding the Fourth Proportional to 68,073.80, 102,024.30 and 60,643.40

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Solution

The fourth proportional to 68,073.80, 102,024.30 and 60,643.40 is: 90,888.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,073.80 : 102,024.30 = 60,643.40 : x
  2. Step 2: Convert to fraction form
    68,073.80/102,024.30 = 60,643.40/x
  3. Step 3: Cross multiply
    68,073.80x = 102,024.30 × 60,643.40
  4. Step 4: Simplify right side
    68,073.80x = 6,187,100,434.62
  5. Step 5: Solve for x
    x = 6,187,100,434.62/68,073.80
  6. Step 6: Final answer
    x = 90,888.13

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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.