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Finding the Fourth Proportional to 157,401.20, 236,080.20 and 52,209.20

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Solution

The fourth proportional to 157,401.20, 236,080.20 and 52,209.20 is: 78,306.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,401.20 : 236,080.20 = 52,209.20 : x
  2. Step 2: Convert to fraction form
    157,401.20/236,080.20 = 52,209.20/x
  3. Step 3: Cross multiply
    157,401.20x = 236,080.20 × 52,209.20
  4. Step 4: Simplify right side
    157,401.20x = 12,325,558,377.84
  5. Step 5: Solve for x
    x = 12,325,558,377.84/157,401.20
  6. Step 6: Final answer
    x = 78,306.64

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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.