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Finding the Fourth Proportional to 115,960.80, 173,422.80 and 97,298.40

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Solution

The fourth proportional to 115,960.80, 173,422.80 and 97,298.40 is: 145,512.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,960.80 : 173,422.80 = 97,298.40 : x
  2. Step 2: Convert to fraction form
    115,960.80/173,422.80 = 97,298.40/x
  3. Step 3: Cross multiply
    115,960.80x = 173,422.80 × 97,298.40
  4. Step 4: Simplify right side
    115,960.80x = 16,873,760,963.52
  5. Step 5: Solve for x
    x = 16,873,760,963.52/115,960.80
  6. Step 6: Final answer
    x = 145,512.63

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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.