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Finding the Fourth Proportional to 70,407.86, 105,537.96 and 32,936.36

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Solution

The fourth proportional to 70,407.86, 105,537.96 and 32,936.36 is: 49,370.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,407.86 : 105,537.96 = 32,936.36 : x
  2. Step 2: Convert to fraction form
    70,407.86/105,537.96 = 32,936.36/x
  3. Step 3: Cross multiply
    70,407.86x = 105,537.96 × 32,936.36
  4. Step 4: Simplify right side
    70,407.86x = 3,476,035,716.54
  5. Step 5: Solve for x
    x = 3,476,035,716.54/70,407.86
  6. Step 6: Final answer
    x = 49,370.00

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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.