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Finding the Fourth Proportional to 165,423.74, 248,217.62 and 65,581.72

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Solution

The fourth proportional to 165,423.74, 248,217.62 and 65,581.72 is: 98,405.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,423.74 : 248,217.62 = 65,581.72 : x
  2. Step 2: Convert to fraction form
    165,423.74/248,217.62 = 65,581.72/x
  3. Step 3: Cross multiply
    165,423.74x = 248,217.62 × 65,581.72
  4. Step 4: Simplify right side
    165,423.74x = 16,278,537,505.45
  5. Step 5: Solve for x
    x = 16,278,537,505.45/165,423.74
  6. Step 6: Final answer
    x = 98,405.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.