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Finding the Fourth Proportional to 341,716.80, 512,575.20 and 141,970.80

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Solution

The fourth proportional to 341,716.80, 512,575.20 and 141,970.80 is: 212,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,716.80 : 512,575.20 = 141,970.80 : x
  2. Step 2: Convert to fraction form
    341,716.80/512,575.20 = 141,970.80/x
  3. Step 3: Cross multiply
    341,716.80x = 512,575.20 × 141,970.80
  4. Step 4: Simplify right side
    341,716.80x = 72,770,711,204.16
  5. Step 5: Solve for x
    x = 72,770,711,204.16/341,716.80
  6. Step 6: Final answer
    x = 212,956.20

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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.