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Finding the Fourth Proportional to 119,586.33, 165,030.39 and 65,873.07

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Solution

The fourth proportional to 119,586.33, 165,030.39 and 65,873.07 is: 90,905.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,586.33 : 165,030.39 = 65,873.07 : x
  2. Step 2: Convert to fraction form
    119,586.33/165,030.39 = 65,873.07/x
  3. Step 3: Cross multiply
    119,586.33x = 165,030.39 × 65,873.07
  4. Step 4: Simplify right side
    119,586.33x = 10,871,058,432.60
  5. Step 5: Solve for x
    x = 10,871,058,432.60/119,586.33
  6. Step 6: Final answer
    x = 90,905.53

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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.