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Finding the Fourth Proportional to 248,362.80, 372,599.76 and 90,591.26

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Solution

The fourth proportional to 248,362.80, 372,599.76 and 90,591.26 is: 135,907.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,362.80 : 372,599.76 = 90,591.26 : x
  2. Step 2: Convert to fraction form
    248,362.80/372,599.76 = 90,591.26/x
  3. Step 3: Cross multiply
    248,362.80x = 372,599.76 × 90,591.26
  4. Step 4: Simplify right side
    248,362.80x = 33,754,279,418.14
  5. Step 5: Solve for x
    x = 33,754,279,418.14/248,362.80
  6. Step 6: Final answer
    x = 135,907.15

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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.