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Finding the Fourth Proportional to 77,398.22, 106,800.03 and 45,560.97

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Solution

The fourth proportional to 77,398.22, 106,800.03 and 45,560.97 is: 62,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,398.22 : 106,800.03 = 45,560.97 : x
  2. Step 2: Convert to fraction form
    77,398.22/106,800.03 = 45,560.97/x
  3. Step 3: Cross multiply
    77,398.22x = 106,800.03 × 45,560.97
  4. Step 4: Simplify right side
    77,398.22x = 4,865,912,962.83
  5. Step 5: Solve for x
    x = 4,865,912,962.83/77,398.22
  6. Step 6: Final answer
    x = 62,868.54

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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.