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Finding the Fourth Proportional to 217,114.39, 325,673.34 and 84,009.88

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Solution

The fourth proportional to 217,114.39, 325,673.34 and 84,009.88 is: 126,015.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,114.39 : 325,673.34 = 84,009.88 : x
  2. Step 2: Convert to fraction form
    217,114.39/325,673.34 = 84,009.88/x
  3. Step 3: Cross multiply
    217,114.39x = 325,673.34 × 84,009.88
  4. Step 4: Simplify right side
    217,114.39x = 27,359,778,212.60
  5. Step 5: Solve for x
    x = 27,359,778,212.60/217,114.39
  6. Step 6: Final answer
    x = 126,015.50

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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.