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Finding the Fourth Proportional to 119,588.25, 165,031.79 and 65,873.10

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Solution

The fourth proportional to 119,588.25, 165,031.79 and 65,873.10 is: 90,904.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,588.25 : 165,031.79 = 65,873.10 : x
  2. Step 2: Convert to fraction form
    119,588.25/165,031.79 = 65,873.10/x
  3. Step 3: Cross multiply
    119,588.25x = 165,031.79 × 65,873.10
  4. Step 4: Simplify right side
    119,588.25x = 10,871,155,276.48
  5. Step 5: Solve for x
    x = 10,871,155,276.48/119,588.25
  6. Step 6: Final answer
    x = 90,904.88

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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.