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Finding the Fourth Proportional to 61,237.30, 91,742.55 and 34,863.70

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Solution

The fourth proportional to 61,237.30, 91,742.55 and 34,863.70 is: 52,230.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,237.30 : 91,742.55 = 34,863.70 : x
  2. Step 2: Convert to fraction form
    61,237.30/91,742.55 = 34,863.70/x
  3. Step 3: Cross multiply
    61,237.30x = 91,742.55 × 34,863.70
  4. Step 4: Simplify right side
    61,237.30x = 3,198,484,740.44
  5. Step 5: Solve for x
    x = 3,198,484,740.44/61,237.30
  6. Step 6: Final answer
    x = 52,230.99

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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.