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Finding the Fourth Proportional to 217,077.80, 325,463.10 and 83,906.60

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Solution

The fourth proportional to 217,077.80, 325,463.10 and 83,906.60 is: 125,800.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,077.80 : 325,463.10 = 83,906.60 : x
  2. Step 2: Convert to fraction form
    217,077.80/325,463.10 = 83,906.60/x
  3. Step 3: Cross multiply
    217,077.80x = 325,463.10 × 83,906.60
  4. Step 4: Simplify right side
    217,077.80x = 27,308,502,146.46
  5. Step 5: Solve for x
    x = 27,308,502,146.46/217,077.80
  6. Step 6: Final answer
    x = 125,800.53

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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.