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Finding the Fourth Proportional to 437,379.70, 655,971.14 and 156,896.95

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Solution

The fourth proportional to 437,379.70, 655,971.14 and 156,896.95 is: 235,310.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,379.70 : 655,971.14 = 156,896.95 : x
  2. Step 2: Convert to fraction form
    437,379.70/655,971.14 = 156,896.95/x
  3. Step 3: Cross multiply
    437,379.70x = 655,971.14 × 156,896.95
  4. Step 4: Simplify right side
    437,379.70x = 102,919,871,136.28
  5. Step 5: Solve for x
    x = 102,919,871,136.28/437,379.70
  6. Step 6: Final answer
    x = 235,310.12

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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.