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Finding the Fourth Proportional to 193,912.40, 290,998.20 and 88,677.20

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Solution

The fourth proportional to 193,912.40, 290,998.20 and 88,677.20 is: 133,075.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,912.40 : 290,998.20 = 88,677.20 : x
  2. Step 2: Convert to fraction form
    193,912.40/290,998.20 = 88,677.20/x
  3. Step 3: Cross multiply
    193,912.40x = 290,998.20 × 88,677.20
  4. Step 4: Simplify right side
    193,912.40x = 25,804,905,581.04
  5. Step 5: Solve for x
    x = 25,804,905,581.04/193,912.40
  6. Step 6: Final answer
    x = 133,075.07

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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.