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Finding the Fourth Proportional to 119,575.28, 165,013.80 and 65,858.96

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Solution

The fourth proportional to 119,575.28, 165,013.80 and 65,858.96 is: 90,885.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,575.28 : 165,013.80 = 65,858.96 : x
  2. Step 2: Convert to fraction form
    119,575.28/165,013.80 = 65,858.96/x
  3. Step 3: Cross multiply
    119,575.28x = 165,013.80 × 65,858.96
  4. Step 4: Simplify right side
    119,575.28x = 10,867,637,253.65
  5. Step 5: Solve for x
    x = 10,867,637,253.65/119,575.28
  6. Step 6: Final answer
    x = 90,885.32

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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.