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Finding the Fourth Proportional to 61,222.44, 91,747.50 and 48,686.76

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Solution

The fourth proportional to 61,222.44, 91,747.50 and 48,686.76 is: 72,961.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,222.44 : 91,747.50 = 48,686.76 : x
  2. Step 2: Convert to fraction form
    61,222.44/91,747.50 = 48,686.76/x
  3. Step 3: Cross multiply
    61,222.44x = 91,747.50 × 48,686.76
  4. Step 4: Simplify right side
    61,222.44x = 4,466,888,513.10
  5. Step 5: Solve for x
    x = 4,466,888,513.10/61,222.44
  6. Step 6: Final answer
    x = 72,961.62

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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.