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Finding the Fourth Proportional to 291,996.70, 402,895.29 and 167,793.67

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Solution

The fourth proportional to 291,996.70, 402,895.29 and 167,793.67 is: 231,520.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,996.70 : 402,895.29 = 167,793.67 : x
  2. Step 2: Convert to fraction form
    291,996.70/402,895.29 = 167,793.67/x
  3. Step 3: Cross multiply
    291,996.70x = 402,895.29 × 167,793.67
  4. Step 4: Simplify right side
    291,996.70x = 67,603,279,334.81
  5. Step 5: Solve for x
    x = 67,603,279,334.81/291,996.70
  6. Step 6: Final answer
    x = 231,520.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.