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Finding the Fourth Proportional to 61,859.90, 92,836.49 and 45,262.75

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Solution

The fourth proportional to 61,859.90, 92,836.49 and 45,262.75 is: 67,928.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,859.90 : 92,836.49 = 45,262.75 : x
  2. Step 2: Convert to fraction form
    61,859.90/92,836.49 = 45,262.75/x
  3. Step 3: Cross multiply
    61,859.90x = 92,836.49 × 45,262.75
  4. Step 4: Simplify right side
    61,859.90x = 4,202,034,373.57
  5. Step 5: Solve for x
    x = 4,202,034,373.57/61,859.90
  6. Step 6: Final answer
    x = 67,928.25

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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.