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Finding the Fourth Proportional to 260,661.34, 359,805.27 and 158,640.22

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Solution

The fourth proportional to 260,661.34, 359,805.27 and 158,640.22 is: 218,979.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,661.34 : 359,805.27 = 158,640.22 : x
  2. Step 2: Convert to fraction form
    260,661.34/359,805.27 = 158,640.22/x
  3. Step 3: Cross multiply
    260,661.34x = 359,805.27 × 158,640.22
  4. Step 4: Simplify right side
    260,661.34x = 57,079,587,189.96
  5. Step 5: Solve for x
    x = 57,079,587,189.96/260,661.34
  6. Step 6: Final answer
    x = 218,979.87

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1.5x scale

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.