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Finding the Fourth Proportional to 371,937.80, 557,906.70 and 194,499.20

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Solution

The fourth proportional to 371,937.80, 557,906.70 and 194,499.20 is: 291,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,937.80 : 557,906.70 = 194,499.20 : x
  2. Step 2: Convert to fraction form
    371,937.80/557,906.70 = 194,499.20/x
  3. Step 3: Cross multiply
    371,937.80x = 557,906.70 × 194,499.20
  4. Step 4: Simplify right side
    371,937.80x = 108,512,406,824.64
  5. Step 5: Solve for x
    x = 108,512,406,824.64/371,937.80
  6. Step 6: Final answer
    x = 291,748.80

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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.