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Finding the Fourth Proportional to 70,843, 97,759.54 and 40,626.85

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Solution

The fourth proportional to 70,843, 97,759.54 and 40,626.85 is: 56,062.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,843 : 97,759.54 = 40,626.85 : x
  2. Step 2: Convert to fraction form
    70,843/97,759.54 = 40,626.85/x
  3. Step 3: Cross multiply
    70,843x = 97,759.54 × 40,626.85
  4. Step 4: Simplify right side
    70,843x = 3,971,662,167.65
  5. Step 5: Solve for x
    x = 3,971,662,167.65/70,843
  6. Step 6: Final answer
    x = 56,062.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.