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Finding the Fourth Proportional to 61,884.80, 92,827.20 and 42,201.80

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Solution

The fourth proportional to 61,884.80, 92,827.20 and 42,201.80 is: 63,302.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,884.80 : 92,827.20 = 42,201.80 : x
  2. Step 2: Convert to fraction form
    61,884.80/92,827.20 = 42,201.80/x
  3. Step 3: Cross multiply
    61,884.80x = 92,827.20 × 42,201.80
  4. Step 4: Simplify right side
    61,884.80x = 3,917,474,928.96
  5. Step 5: Solve for x
    x = 3,917,474,928.96/61,884.80
  6. Step 6: Final answer
    x = 63,302.70

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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.