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Finding the Fourth Proportional to 119,873.59, 165,425.91 and 65,426.26

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Solution

The fourth proportional to 119,873.59, 165,425.91 and 65,426.26 is: 90,288.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,873.59 : 165,425.91 = 65,426.26 : x
  2. Step 2: Convert to fraction form
    119,873.59/165,425.91 = 65,426.26/x
  3. Step 3: Cross multiply
    119,873.59x = 165,425.91 × 65,426.26
  4. Step 4: Simplify right side
    119,873.59x = 10,823,197,444.14
  5. Step 5: Solve for x
    x = 10,823,197,444.14/119,873.59
  6. Step 6: Final answer
    x = 90,288.43

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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.