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Finding the Fourth Proportional to 217,876.26, 300,622.60 and 127,191.07

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Solution

The fourth proportional to 217,876.26, 300,622.60 and 127,191.07 is: 175,496.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,876.26 : 300,622.60 = 127,191.07 : x
  2. Step 2: Convert to fraction form
    217,876.26/300,622.60 = 127,191.07/x
  3. Step 3: Cross multiply
    217,876.26x = 300,622.60 × 127,191.07
  4. Step 4: Simplify right side
    217,876.26x = 38,236,510,160.18
  5. Step 5: Solve for x
    x = 38,236,510,160.18/217,876.26
  6. Step 6: Final answer
    x = 175,496.45

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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.