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Finding the Fourth Proportional to 667,380.87, 1,001,062.87 and 161,946

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Solution

The fourth proportional to 667,380.87, 1,001,062.87 and 161,946 is: 242,916.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,380.87 : 1,001,062.87 = 161,946 : x
  2. Step 2: Convert to fraction form
    667,380.87/1,001,062.87 = 161,946/x
  3. Step 3: Cross multiply
    667,380.87x = 1,001,062.87 × 161,946
  4. Step 4: Simplify right side
    667,380.87x = 162,118,127,140.16
  5. Step 5: Solve for x
    x = 162,118,127,140.16/667,380.87
  6. Step 6: Final answer
    x = 242,916.95

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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.