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Finding the Fourth Proportional to 61,652.20, 92,348.70 and 51,284.20

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Solution

The fourth proportional to 61,652.20, 92,348.70 and 51,284.20 is: 76,818.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,652.20 : 92,348.70 = 51,284.20 : x
  2. Step 2: Convert to fraction form
    61,652.20/92,348.70 = 51,284.20/x
  3. Step 3: Cross multiply
    61,652.20x = 92,348.70 × 51,284.20
  4. Step 4: Simplify right side
    61,652.20x = 4,736,029,200.54
  5. Step 5: Solve for x
    x = 4,736,029,200.54/61,652.20
  6. Step 6: Final answer
    x = 76,818.49

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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.