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Finding the Fourth Proportional to 115,774.97, 159,773.85 and 67,373.01

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Solution

The fourth proportional to 115,774.97, 159,773.85 and 67,373.01 is: 92,977.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,774.97 : 159,773.85 = 67,373.01 : x
  2. Step 2: Convert to fraction form
    115,774.97/159,773.85 = 67,373.01/x
  3. Step 3: Cross multiply
    115,774.97x = 159,773.85 × 67,373.01
  4. Step 4: Simplify right side
    115,774.97x = 10,764,445,193.79
  5. Step 5: Solve for x
    x = 10,764,445,193.79/115,774.97
  6. Step 6: Final answer
    x = 92,977.31

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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.