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Finding the Fourth Proportional to 69,709.80, 96,199.62 and 37,879.08

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Solution

The fourth proportional to 69,709.80, 96,199.62 and 37,879.08 is: 52,273.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,709.80 : 96,199.62 = 37,879.08 : x
  2. Step 2: Convert to fraction form
    69,709.80/96,199.62 = 37,879.08/x
  3. Step 3: Cross multiply
    69,709.80x = 96,199.62 × 37,879.08
  4. Step 4: Simplify right side
    69,709.80x = 3,643,953,101.95
  5. Step 5: Solve for x
    x = 3,643,953,101.95/69,709.80
  6. Step 6: Final answer
    x = 52,273.18

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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.