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Finding the Fourth Proportional to 69,335.28, 103,939.14 and 37,699.12

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Solution

The fourth proportional to 69,335.28, 103,939.14 and 37,699.12 is: 56,514.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,335.28 : 103,939.14 = 37,699.12 : x
  2. Step 2: Convert to fraction form
    69,335.28/103,939.14 = 37,699.12/x
  3. Step 3: Cross multiply
    69,335.28x = 103,939.14 × 37,699.12
  4. Step 4: Simplify right side
    69,335.28x = 3,918,414,111.56
  5. Step 5: Solve for x
    x = 3,918,414,111.56/69,335.28
  6. Step 6: Final answer
    x = 56,514.00

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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.