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Finding the Fourth Proportional to 165,391.74, 248,169.60 and 65,549.70

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Solution

The fourth proportional to 165,391.74, 248,169.60 and 65,549.70 is: 98,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,391.74 : 248,169.60 = 65,549.70 : x
  2. Step 2: Convert to fraction form
    165,391.74/248,169.60 = 65,549.70/x
  3. Step 3: Cross multiply
    165,391.74x = 248,169.60 × 65,549.70
  4. Step 4: Simplify right side
    165,391.74x = 16,267,442,829.12
  5. Step 5: Solve for x
    x = 16,267,442,829.12/165,391.74
  6. Step 6: Final answer
    x = 98,357.05

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1.5x scale

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.