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Finding the Fourth Proportional to 92,143.60, 127,197.41 and 61,946.44

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Solution

The fourth proportional to 92,143.60, 127,197.41 and 61,946.44 is: 85,512.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,143.60 : 127,197.41 = 61,946.44 : x
  2. Step 2: Convert to fraction form
    92,143.60/127,197.41 = 61,946.44/x
  3. Step 3: Cross multiply
    92,143.60x = 127,197.41 × 61,946.44
  4. Step 4: Simplify right side
    92,143.60x = 7,879,426,098.99
  5. Step 5: Solve for x
    x = 7,879,426,098.99/92,143.60
  6. Step 6: Final answer
    x = 85,512.46

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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.