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Finding the Fourth Proportional to 61,158.70, 91,738.05 and 34,914.70

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Solution

The fourth proportional to 61,158.70, 91,738.05 and 34,914.70 is: 52,372.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,158.70 : 91,738.05 = 34,914.70 : x
  2. Step 2: Convert to fraction form
    61,158.70/91,738.05 = 34,914.70/x
  3. Step 3: Cross multiply
    61,158.70x = 91,738.05 × 34,914.70
  4. Step 4: Simplify right side
    61,158.70x = 3,203,006,494.34
  5. Step 5: Solve for x
    x = 3,203,006,494.34/61,158.70
  6. Step 6: Final answer
    x = 52,372.05

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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.