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Finding the Fourth Proportional to 69,619.52, 104,412.57 and 32,143.59

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Solution

The fourth proportional to 69,619.52, 104,412.57 and 32,143.59 is: 48,207.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,619.52 : 104,412.57 = 32,143.59 : x
  2. Step 2: Convert to fraction form
    69,619.52/104,412.57 = 32,143.59/x
  3. Step 3: Cross multiply
    69,619.52x = 104,412.57 × 32,143.59
  4. Step 4: Simplify right side
    69,619.52x = 3,356,194,840.93
  5. Step 5: Solve for x
    x = 3,356,194,840.93/69,619.52
  6. Step 6: Final answer
    x = 48,207.67

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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.