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Finding the Fourth Proportional to 217,722.58, 300,489.96 and 132,888.94

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Solution

The fourth proportional to 217,722.58, 300,489.96 and 132,888.94 is: 183,406.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,722.58 : 300,489.96 = 132,888.94 : x
  2. Step 2: Convert to fraction form
    217,722.58/300,489.96 = 132,888.94/x
  3. Step 3: Cross multiply
    217,722.58x = 300,489.96 × 132,888.94
  4. Step 4: Simplify right side
    217,722.58x = 39,931,792,265.04
  5. Step 5: Solve for x
    x = 39,931,792,265.04/217,722.58
  6. Step 6: Final answer
    x = 183,406.76

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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.