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Finding the Fourth Proportional to 173,689.80, 260,621.10 and 98,867.40

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Solution

The fourth proportional to 173,689.80, 260,621.10 and 98,867.40 is: 148,350.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,689.80 : 260,621.10 = 98,867.40 : x
  2. Step 2: Convert to fraction form
    173,689.80/260,621.10 = 98,867.40/x
  3. Step 3: Cross multiply
    173,689.80x = 260,621.10 × 98,867.40
  4. Step 4: Simplify right side
    173,689.80x = 25,766,930,542.14
  5. Step 5: Solve for x
    x = 25,766,930,542.14/173,689.80
  6. Step 6: Final answer
    x = 148,350.28

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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.