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Finding the Fourth Proportional to 115,902.60, 173,853.90 and 56,747.40

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Solution

The fourth proportional to 115,902.60, 173,853.90 and 56,747.40 is: 85,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,902.60 : 173,853.90 = 56,747.40 : x
  2. Step 2: Convert to fraction form
    115,902.60/173,853.90 = 56,747.40/x
  3. Step 3: Cross multiply
    115,902.60x = 173,853.90 × 56,747.40
  4. Step 4: Simplify right side
    115,902.60x = 9,865,756,804.86
  5. Step 5: Solve for x
    x = 9,865,756,804.86/115,902.60
  6. Step 6: Final answer
    x = 85,121.10

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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.