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Finding the Fourth Proportional to 162,778.55, 244,167.83 and 103,656.65

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Solution

The fourth proportional to 162,778.55, 244,167.83 and 103,656.65 is: 155,484.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,778.55 : 244,167.83 = 103,656.65 : x
  2. Step 2: Convert to fraction form
    162,778.55/244,167.83 = 103,656.65/x
  3. Step 3: Cross multiply
    162,778.55x = 244,167.83 × 103,656.65
  4. Step 4: Simplify right side
    162,778.55x = 25,309,619,295.57
  5. Step 5: Solve for x
    x = 25,309,619,295.57/162,778.55
  6. Step 6: Final answer
    x = 155,484.98

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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.