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Finding the Fourth Proportional to 437,800.65, 656,720.65 and 134,172.56

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Solution

The fourth proportional to 437,800.65, 656,720.65 and 134,172.56 is: 201,264.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,800.65 : 656,720.65 = 134,172.56 : x
  2. Step 2: Convert to fraction form
    437,800.65/656,720.65 = 134,172.56/x
  3. Step 3: Cross multiply
    437,800.65x = 656,720.65 × 134,172.56
  4. Step 4: Simplify right side
    437,800.65x = 88,113,892,121.73
  5. Step 5: Solve for x
    x = 88,113,892,121.73/437,800.65
  6. Step 6: Final answer
    x = 201,264.87

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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.