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Finding the Fourth Proportional to 61,750.50, 85,276.24 and 52,745.53

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Solution

The fourth proportional to 61,750.50, 85,276.24 and 52,745.53 is: 72,840.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,750.50 : 85,276.24 = 52,745.53 : x
  2. Step 2: Convert to fraction form
    61,750.50/85,276.24 = 52,745.53/x
  3. Step 3: Cross multiply
    61,750.50x = 85,276.24 × 52,745.53
  4. Step 4: Simplify right side
    61,750.50x = 4,497,940,586.74
  5. Step 5: Solve for x
    x = 4,497,940,586.74/61,750.50
  6. Step 6: Final answer
    x = 72,840.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.