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Finding the Fourth Proportional to 105,909.93, 158,860.04 and 35,789.85

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Solution

The fourth proportional to 105,909.93, 158,860.04 and 35,789.85 is: 53,683.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,909.93 : 158,860.04 = 35,789.85 : x
  2. Step 2: Convert to fraction form
    105,909.93/158,860.04 = 35,789.85/x
  3. Step 3: Cross multiply
    105,909.93x = 158,860.04 × 35,789.85
  4. Step 4: Simplify right side
    105,909.93x = 5,685,576,823.64
  5. Step 5: Solve for x
    x = 5,685,576,823.64/105,909.93
  6. Step 6: Final answer
    x = 53,683.13

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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.