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Finding the Fourth Proportional to 155,640.30, 233,460.45 and 92,654.70

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Solution

The fourth proportional to 155,640.30, 233,460.45 and 92,654.70 is: 138,982.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,640.30 : 233,460.45 = 92,654.70 : x
  2. Step 2: Convert to fraction form
    155,640.30/233,460.45 = 92,654.70/x
  3. Step 3: Cross multiply
    155,640.30x = 233,460.45 × 92,654.70
  4. Step 4: Simplify right side
    155,640.30x = 21,631,207,956.62
  5. Step 5: Solve for x
    x = 21,631,207,956.62/155,640.30
  6. Step 6: Final answer
    x = 138,982.05

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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.