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Finding the Fourth Proportional to 119,576.28, 165,015.18 and 65,859.96

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Solution

The fourth proportional to 119,576.28, 165,015.18 and 65,859.96 is: 90,886.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,576.28 : 165,015.18 = 65,859.96 : x
  2. Step 2: Convert to fraction form
    119,576.28/165,015.18 = 65,859.96/x
  3. Step 3: Cross multiply
    119,576.28x = 165,015.18 × 65,859.96
  4. Step 4: Simplify right side
    119,576.28x = 10,867,893,154.19
  5. Step 5: Solve for x
    x = 10,867,893,154.19/119,576.28
  6. Step 6: Final answer
    x = 90,886.70

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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.