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Finding the Fourth Proportional to 61,858.61, 92,770.49 and 30,251.60

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Solution

The fourth proportional to 61,858.61, 92,770.49 and 30,251.60 is: 45,368.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,858.61 : 92,770.49 = 30,251.60 : x
  2. Step 2: Convert to fraction form
    61,858.61/92,770.49 = 30,251.60/x
  3. Step 3: Cross multiply
    61,858.61x = 92,770.49 × 30,251.60
  4. Step 4: Simplify right side
    61,858.61x = 2,806,455,367.06
  5. Step 5: Solve for x
    x = 2,806,455,367.06/61,858.61
  6. Step 6: Final answer
    x = 45,368.88

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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.