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Finding the Fourth Proportional to 437,382.65, 655,975.54 and 156,899.90

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Solution

The fourth proportional to 437,382.65, 655,975.54 and 156,899.90 is: 235,314.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,382.65 : 655,975.54 = 156,899.90 : x
  2. Step 2: Convert to fraction form
    437,382.65/655,975.54 = 156,899.90/x
  3. Step 3: Cross multiply
    437,382.65x = 655,975.54 × 156,899.90
  4. Step 4: Simplify right side
    437,382.65x = 102,922,496,628.45
  5. Step 5: Solve for x
    x = 102,922,496,628.45/437,382.65
  6. Step 6: Final answer
    x = 235,314.54

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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.