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Finding the Fourth Proportional to 119,833.31, 165,331.31 and 79,554.84

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Solution

The fourth proportional to 119,833.31, 165,331.31 and 79,554.84 is: 109,760.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,833.31 : 165,331.31 = 79,554.84 : x
  2. Step 2: Convert to fraction form
    119,833.31/165,331.31 = 79,554.84/x
  3. Step 3: Cross multiply
    119,833.31x = 165,331.31 × 79,554.84
  4. Step 4: Simplify right side
    119,833.31x = 13,152,905,516.27
  5. Step 5: Solve for x
    x = 13,152,905,516.27/119,833.31
  6. Step 6: Final answer
    x = 109,760.02

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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.