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Finding the Fourth Proportional to 155,954.97, 215,168.00 and 92,280.47

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Solution

The fourth proportional to 155,954.97, 215,168.00 and 92,280.47 is: 127,317.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,954.97 : 215,168.00 = 92,280.47 : x
  2. Step 2: Convert to fraction form
    155,954.97/215,168.00 = 92,280.47/x
  3. Step 3: Cross multiply
    155,954.97x = 215,168.00 × 92,280.47
  4. Step 4: Simplify right side
    155,954.97x = 19,855,802,631.72
  5. Step 5: Solve for x
    x = 19,855,802,631.72/155,954.97
  6. Step 6: Final answer
    x = 127,317.54

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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.