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Finding the Fourth Proportional to 667,510.60, 1,001,168.70 and 194,146.60

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Solution

The fourth proportional to 667,510.60, 1,001,168.70 and 194,146.60 is: 291,191.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,510.60 : 1,001,168.70 = 194,146.60 : x
  2. Step 2: Convert to fraction form
    667,510.60/1,001,168.70 = 194,146.60/x
  3. Step 3: Cross multiply
    667,510.60x = 1,001,168.70 × 194,146.60
  4. Step 4: Simplify right side
    667,510.60x = 194,373,499,131.42
  5. Step 5: Solve for x
    x = 194,373,499,131.42/667,510.60
  6. Step 6: Final answer
    x = 291,191.63

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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.