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Finding the Fourth Proportional to 127,963.30, 192,002.55 and 61,377.70

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Solution

The fourth proportional to 127,963.30, 192,002.55 and 61,377.70 is: 92,094.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,963.30 : 192,002.55 = 61,377.70 : x
  2. Step 2: Convert to fraction form
    127,963.30/192,002.55 = 61,377.70/x
  3. Step 3: Cross multiply
    127,963.30x = 192,002.55 × 61,377.70
  4. Step 4: Simplify right side
    127,963.30x = 11,784,674,913.14
  5. Step 5: Solve for x
    x = 11,784,674,913.14/127,963.30
  6. Step 6: Final answer
    x = 92,094.18

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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.