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Finding the Fourth Proportional to 173,691.40, 260,342.70 and 98,847.40

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Solution

The fourth proportional to 173,691.40, 260,342.70 and 98,847.40 is: 148,160.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,691.40 : 260,342.70 = 98,847.40 : x
  2. Step 2: Convert to fraction form
    173,691.40/260,342.70 = 98,847.40/x
  3. Step 3: Cross multiply
    173,691.40x = 260,342.70 × 98,847.40
  4. Step 4: Simplify right side
    173,691.40x = 25,734,199,003.98
  5. Step 5: Solve for x
    x = 25,734,199,003.98/173,691.40
  6. Step 6: Final answer
    x = 148,160.47

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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.