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Finding the Fourth Proportional to 119,589.74, 165,033.06 and 65,873.51

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Solution

The fourth proportional to 119,589.74, 165,033.06 and 65,873.51 is: 90,905.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,589.74 : 165,033.06 = 65,873.51 : x
  2. Step 2: Convert to fraction form
    119,589.74/165,033.06 = 65,873.51/x
  3. Step 3: Cross multiply
    119,589.74x = 165,033.06 × 65,873.51
  4. Step 4: Simplify right side
    119,589.74x = 10,871,306,928.24
  5. Step 5: Solve for x
    x = 10,871,306,928.24/119,589.74
  6. Step 6: Final answer
    x = 90,905.01

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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.