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Finding the Fourth Proportional to 437,231.10, 655,846.65 and 156,776.70

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Solution

The fourth proportional to 437,231.10, 655,846.65 and 156,776.70 is: 235,165.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,231.10 : 655,846.65 = 156,776.70 : x
  2. Step 2: Convert to fraction form
    437,231.10/655,846.65 = 156,776.70/x
  3. Step 3: Cross multiply
    437,231.10x = 655,846.65 × 156,776.70
  4. Step 4: Simplify right side
    437,231.10x = 102,821,473,493.06
  5. Step 5: Solve for x
    x = 102,821,473,493.06/437,231.10
  6. Step 6: Final answer
    x = 235,165.05

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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.