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Finding the Fourth Proportional to 97,290.54, 134,251.11 and 71,810.82

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Solution

The fourth proportional to 97,290.54, 134,251.11 and 71,810.82 is: 99,091.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,290.54 : 134,251.11 = 71,810.82 : x
  2. Step 2: Convert to fraction form
    97,290.54/134,251.11 = 71,810.82/x
  3. Step 3: Cross multiply
    97,290.54x = 134,251.11 × 71,810.82
  4. Step 4: Simplify right side
    97,290.54x = 9,640,682,295.01
  5. Step 5: Solve for x
    x = 9,640,682,295.01/97,290.54
  6. Step 6: Final answer
    x = 99,091.67

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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.