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Finding the Fourth Proportional to 667,172.68, 1,000,761.02 and 161,731.68

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Solution

The fourth proportional to 667,172.68, 1,000,761.02 and 161,731.68 is: 242,598.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,172.68 : 1,000,761.02 = 161,731.68 : x
  2. Step 2: Convert to fraction form
    667,172.68/1,000,761.02 = 161,731.68/x
  3. Step 3: Cross multiply
    667,172.68x = 1,000,761.02 × 161,731.68
  4. Step 4: Simplify right side
    667,172.68x = 161,854,761,043.11
  5. Step 5: Solve for x
    x = 161,854,761,043.11/667,172.68
  6. Step 6: Final answer
    x = 242,598.00

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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.