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Finding the Fourth Proportional to 61,650.80, 92,476.20 and 51,282.80

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Solution

The fourth proportional to 61,650.80, 92,476.20 and 51,282.80 is: 76,924.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,650.80 : 92,476.20 = 51,282.80 : x
  2. Step 2: Convert to fraction form
    61,650.80/92,476.20 = 51,282.80/x
  3. Step 3: Cross multiply
    61,650.80x = 92,476.20 × 51,282.80
  4. Step 4: Simplify right side
    61,650.80x = 4,742,438,469.36
  5. Step 5: Solve for x
    x = 4,742,438,469.36/61,650.80
  6. Step 6: Final answer
    x = 76,924.20

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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.