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Finding the Fourth Proportional to 61,735.20, 92,750.40 and 39,591.96

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Solution

The fourth proportional to 61,735.20, 92,750.40 and 39,591.96 is: 59,482.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,735.20 : 92,750.40 = 39,591.96 : x
  2. Step 2: Convert to fraction form
    61,735.20/92,750.40 = 39,591.96/x
  3. Step 3: Cross multiply
    61,735.20x = 92,750.40 × 39,591.96
  4. Step 4: Simplify right side
    61,735.20x = 3,672,170,126.78
  5. Step 5: Solve for x
    x = 3,672,170,126.78/61,735.20
  6. Step 6: Final answer
    x = 59,482.60

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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.