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Finding the Fourth Proportional to 134,478.86, 201,749.88 and 75,355.34

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Solution

The fourth proportional to 134,478.86, 201,749.88 and 75,355.34 is: 113,050.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,478.86 : 201,749.88 = 75,355.34 : x
  2. Step 2: Convert to fraction form
    134,478.86/201,749.88 = 75,355.34/x
  3. Step 3: Cross multiply
    134,478.86x = 201,749.88 × 75,355.34
  4. Step 4: Simplify right side
    134,478.86x = 15,202,929,793.61
  5. Step 5: Solve for x
    x = 15,202,929,793.61/134,478.86
  6. Step 6: Final answer
    x = 113,050.71

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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.