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Finding the Fourth Proportional to 247,091.68, 371,047.44 and 154,187.92

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Solution

The fourth proportional to 247,091.68, 371,047.44 and 154,187.92 is: 231,537.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,091.68 : 371,047.44 = 154,187.92 : x
  2. Step 2: Convert to fraction form
    247,091.68/371,047.44 = 154,187.92/x
  3. Step 3: Cross multiply
    247,091.68x = 371,047.44 × 154,187.92
  4. Step 4: Simplify right side
    247,091.68x = 57,211,031,139.69
  5. Step 5: Solve for x
    x = 57,211,031,139.69/247,091.68
  6. Step 6: Final answer
    x = 231,537.67

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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.