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Finding the Fourth Proportional to 69,736.52, 96,290.70 and 42,891.50

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Solution

The fourth proportional to 69,736.52, 96,290.70 and 42,891.50 is: 59,223.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,736.52 : 96,290.70 = 42,891.50 : x
  2. Step 2: Convert to fraction form
    69,736.52/96,290.70 = 42,891.50/x
  3. Step 3: Cross multiply
    69,736.52x = 96,290.70 × 42,891.50
  4. Step 4: Simplify right side
    69,736.52x = 4,130,052,559.05
  5. Step 5: Solve for x
    x = 4,130,052,559.05/69,736.52
  6. Step 6: Final answer
    x = 59,223.67

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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.