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Finding the Fourth Proportional to 445,248.16, 667,706.16 and 178,918.54

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Solution

The fourth proportional to 445,248.16, 667,706.16 and 178,918.54 is: 268,311.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,248.16 : 667,706.16 = 178,918.54 : x
  2. Step 2: Convert to fraction form
    445,248.16/667,706.16 = 178,918.54/x
  3. Step 3: Cross multiply
    445,248.16x = 667,706.16 × 178,918.54
  4. Step 4: Simplify right side
    445,248.16x = 119,465,011,296.21
  5. Step 5: Solve for x
    x = 119,465,011,296.21/445,248.16
  6. Step 6: Final answer
    x = 268,311.07

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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.