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Finding the Fourth Proportional to 192,656.55, 288,985.23 and 103,951.83

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Solution

The fourth proportional to 192,656.55, 288,985.23 and 103,951.83 is: 155,927.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,656.55 : 288,985.23 = 103,951.83 : x
  2. Step 2: Convert to fraction form
    192,656.55/288,985.23 = 103,951.83/x
  3. Step 3: Cross multiply
    192,656.55x = 288,985.23 × 103,951.83
  4. Step 4: Simplify right side
    192,656.55x = 30,040,543,501.47
  5. Step 5: Solve for x
    x = 30,040,543,501.47/192,656.55
  6. Step 6: Final answer
    x = 155,927.96

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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.