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Finding the Fourth Proportional to 157,704.40, 236,470.20 and 52,469.20

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Solution

The fourth proportional to 157,704.40, 236,470.20 and 52,469.20 is: 78,675.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,704.40 : 236,470.20 = 52,469.20 : x
  2. Step 2: Convert to fraction form
    157,704.40/236,470.20 = 52,469.20/x
  3. Step 3: Cross multiply
    157,704.40x = 236,470.20 × 52,469.20
  4. Step 4: Simplify right side
    157,704.40x = 12,407,402,217.84
  5. Step 5: Solve for x
    x = 12,407,402,217.84/157,704.40
  6. Step 6: Final answer
    x = 78,675.05

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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.