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Finding the Fourth Proportional to 193,750.20, 290,430.90 and 88,644.60

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Solution

The fourth proportional to 193,750.20, 290,430.90 and 88,644.60 is: 132,877.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,750.20 : 290,430.90 = 88,644.60 : x
  2. Step 2: Convert to fraction form
    193,750.20/290,430.90 = 88,644.60/x
  3. Step 3: Cross multiply
    193,750.20x = 290,430.90 × 88,644.60
  4. Step 4: Simplify right side
    193,750.20x = 25,745,130,958.14
  5. Step 5: Solve for x
    x = 25,745,130,958.14/193,750.20
  6. Step 6: Final answer
    x = 132,877.96

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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.