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Finding the Fourth Proportional to 217,188.44, 299,720.15 and 132,305.51

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Solution

The fourth proportional to 217,188.44, 299,720.15 and 132,305.51 is: 182,581.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,188.44 : 299,720.15 = 132,305.51 : x
  2. Step 2: Convert to fraction form
    217,188.44/299,720.15 = 132,305.51/x
  3. Step 3: Cross multiply
    217,188.44x = 299,720.15 × 132,305.51
  4. Step 4: Simplify right side
    217,188.44x = 39,654,627,303.03
  5. Step 5: Solve for x
    x = 39,654,627,303.03/217,188.44
  6. Step 6: Final answer
    x = 182,581.67

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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.