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Finding the Fourth Proportional to 115,616.58, 173,003.11 and 68,254.36

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Solution

The fourth proportional to 115,616.58, 173,003.11 and 68,254.36 is: 102,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,616.58 : 173,003.11 = 68,254.36 : x
  2. Step 2: Convert to fraction form
    115,616.58/173,003.11 = 68,254.36/x
  3. Step 3: Cross multiply
    115,616.58x = 173,003.11 × 68,254.36
  4. Step 4: Simplify right side
    115,616.58x = 11,808,215,947.92
  5. Step 5: Solve for x
    x = 11,808,215,947.92/115,616.58
  6. Step 6: Final answer
    x = 102,132.55

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1.5x scale

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.