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Finding the Fourth Proportional to 192,089.93, 288,117.61 and 67,423.37

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Solution

The fourth proportional to 192,089.93, 288,117.61 and 67,423.37 is: 101,128.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,089.93 : 288,117.61 = 67,423.37 : x
  2. Step 2: Convert to fraction form
    192,089.93/288,117.61 = 67,423.37/x
  3. Step 3: Cross multiply
    192,089.93x = 288,117.61 × 67,423.37
  4. Step 4: Simplify right side
    192,089.93x = 19,425,858,613.40
  5. Step 5: Solve for x
    x = 19,425,858,613.40/192,089.93
  6. Step 6: Final answer
    x = 101,128.98

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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.