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Finding the Fourth Proportional to 194,062.79, 291,002.00 and 67,687.68

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Solution

The fourth proportional to 194,062.79, 291,002.00 and 67,687.68 is: 101,499.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,062.79 : 291,002.00 = 67,687.68 : x
  2. Step 2: Convert to fraction form
    194,062.79/291,002.00 = 67,687.68/x
  3. Step 3: Cross multiply
    194,062.79x = 291,002.00 × 67,687.68
  4. Step 4: Simplify right side
    194,062.79x = 19,697,251,388.92
  5. Step 5: Solve for x
    x = 19,697,251,388.92/194,062.79
  6. Step 6: Final answer
    x = 101,499.37

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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.