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Finding the Fourth Proportional to 119,588.92, 165,032.04 and 65,872.48

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Solution

The fourth proportional to 119,588.92, 165,032.04 and 65,872.48 is: 90,903.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,588.92 : 165,032.04 = 65,872.48 : x
  2. Step 2: Convert to fraction form
    119,588.92/165,032.04 = 65,872.48/x
  3. Step 3: Cross multiply
    119,588.92x = 165,032.04 × 65,872.48
  4. Step 4: Simplify right side
    119,588.92x = 10,871,069,754.26
  5. Step 5: Solve for x
    x = 10,871,069,754.26/119,588.92
  6. Step 6: Final answer
    x = 90,903.65

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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.