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Finding the Fourth Proportional to 92,701.92, 127,919.18 and 56,893.44

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Solution

The fourth proportional to 92,701.92, 127,919.18 and 56,893.44 is: 78,507.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,701.92 : 127,919.18 = 56,893.44 : x
  2. Step 2: Convert to fraction form
    92,701.92/127,919.18 = 56,893.44/x
  3. Step 3: Cross multiply
    92,701.92x = 127,919.18 × 56,893.44
  4. Step 4: Simplify right side
    92,701.92x = 7,277,762,192.18
  5. Step 5: Solve for x
    x = 7,277,762,192.18/92,701.92
  6. Step 6: Final answer
    x = 78,507.14

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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.