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Finding the Fourth Proportional to 119,551.20, 164,980.68 and 65,836.08

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Solution

The fourth proportional to 119,551.20, 164,980.68 and 65,836.08 is: 90,853.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,551.20 : 164,980.68 = 65,836.08 : x
  2. Step 2: Convert to fraction form
    119,551.20/164,980.68 = 65,836.08/x
  3. Step 3: Cross multiply
    119,551.20x = 164,980.68 × 65,836.08
  4. Step 4: Simplify right side
    119,551.20x = 10,861,681,246.93
  5. Step 5: Solve for x
    x = 10,861,681,246.93/119,551.20
  6. Step 6: Final answer
    x = 90,853.80

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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.