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Finding the Fourth Proportional to 192,833.70, 266,078.82 and 121,162.96

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Solution

The fourth proportional to 192,833.70, 266,078.82 and 121,162.96 is: 167,184.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,833.70 : 266,078.82 = 121,162.96 : x
  2. Step 2: Convert to fraction form
    192,833.70/266,078.82 = 121,162.96/x
  3. Step 3: Cross multiply
    192,833.70x = 266,078.82 × 121,162.96
  4. Step 4: Simplify right side
    192,833.70x = 32,238,897,424.51
  5. Step 5: Solve for x
    x = 32,238,897,424.51/192,833.70
  6. Step 6: Final answer
    x = 167,184.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.