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Finding the Fourth Proportional to 61,188.30, 91,815.90 and 23,749.86

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Solution

The fourth proportional to 61,188.30, 91,815.90 and 23,749.86 is: 35,637.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,188.30 : 91,815.90 = 23,749.86 : x
  2. Step 2: Convert to fraction form
    61,188.30/91,815.90 = 23,749.86/x
  3. Step 3: Cross multiply
    61,188.30x = 91,815.90 × 23,749.86
  4. Step 4: Simplify right side
    61,188.30x = 2,180,614,770.77
  5. Step 5: Solve for x
    x = 2,180,614,770.77/61,188.30
  6. Step 6: Final answer
    x = 35,637.77

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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.