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Finding the Fourth Proportional to 119,575.74, 165,008.48 and 65,859.60

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Solution

The fourth proportional to 119,575.74, 165,008.48 and 65,859.60 is: 90,882.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,575.74 : 165,008.48 = 65,859.60 : x
  2. Step 2: Convert to fraction form
    119,575.74/165,008.48 = 65,859.60/x
  3. Step 3: Cross multiply
    119,575.74x = 165,008.48 × 65,859.60
  4. Step 4: Simplify right side
    119,575.74x = 10,867,392,489.41
  5. Step 5: Solve for x
    x = 10,867,392,489.41/119,575.74
  6. Step 6: Final answer
    x = 90,882.92

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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.