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Finding the Fourth Proportional to 115,793.40, 173,690.10 and 56,744.40

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Solution

The fourth proportional to 115,793.40, 173,690.10 and 56,744.40 is: 85,116.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,793.40 : 173,690.10 = 56,744.40 : x
  2. Step 2: Convert to fraction form
    115,793.40/173,690.10 = 56,744.40/x
  3. Step 3: Cross multiply
    115,793.40x = 173,690.10 × 56,744.40
  4. Step 4: Simplify right side
    115,793.40x = 9,855,940,510.44
  5. Step 5: Solve for x
    x = 9,855,940,510.44/115,793.40
  6. Step 6: Final answer
    x = 85,116.60

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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.