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Finding the Fourth Proportional to 341,872.38, 512,809.65 and 105,213.60

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Solution

The fourth proportional to 341,872.38, 512,809.65 and 105,213.60 is: 157,820.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,872.38 : 512,809.65 = 105,213.60 : x
  2. Step 2: Convert to fraction form
    341,872.38/512,809.65 = 105,213.60/x
  3. Step 3: Cross multiply
    341,872.38x = 512,809.65 × 105,213.60
  4. Step 4: Simplify right side
    341,872.38x = 53,954,549,391.24
  5. Step 5: Solve for x
    x = 53,954,549,391.24/341,872.38
  6. Step 6: Final answer
    x = 157,820.73

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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.