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Finding the Fourth Proportional to 291,385.65, 437,338.08 and 149,327.67

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Solution

The fourth proportional to 291,385.65, 437,338.08 and 149,327.67 is: 224,124.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,385.65 : 437,338.08 = 149,327.67 : x
  2. Step 2: Convert to fraction form
    291,385.65/437,338.08 = 149,327.67/x
  3. Step 3: Cross multiply
    291,385.65x = 437,338.08 × 149,327.67
  4. Step 4: Simplify right side
    291,385.65x = 65,306,676,488.67
  5. Step 5: Solve for x
    x = 65,306,676,488.67/291,385.65
  6. Step 6: Final answer
    x = 224,124.55

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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.