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Finding the Fourth Proportional to 192,034.25, 287,959.37 and 90,748.01

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Solution

The fourth proportional to 192,034.25, 287,959.37 and 90,748.01 is: 136,078.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,034.25 : 287,959.37 = 90,748.01 : x
  2. Step 2: Convert to fraction form
    192,034.25/287,959.37 = 90,748.01/x
  3. Step 3: Cross multiply
    192,034.25x = 287,959.37 × 90,748.01
  4. Step 4: Simplify right side
    192,034.25x = 26,131,739,334.61
  5. Step 5: Solve for x
    x = 26,131,739,334.61/192,034.25
  6. Step 6: Final answer
    x = 136,078.53

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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.