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Finding the Fourth Proportional to 318,047.67, 477,071.82 and 149,444.37

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Solution

The fourth proportional to 318,047.67, 477,071.82 and 149,444.37 is: 224,166.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,047.67 : 477,071.82 = 149,444.37 : x
  2. Step 2: Convert to fraction form
    318,047.67/477,071.82 = 149,444.37/x
  3. Step 3: Cross multiply
    318,047.67x = 477,071.82 × 149,444.37
  4. Step 4: Simplify right side
    318,047.67x = 71,295,697,584.65
  5. Step 5: Solve for x
    x = 71,295,697,584.65/318,047.67
  6. Step 6: Final answer
    x = 224,166.70

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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.