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Finding the Fourth Proportional to 217,167.28, 325,390.64 and 153,672.59

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Solution

The fourth proportional to 217,167.28, 325,390.64 and 153,672.59 is: 230,253.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,167.28 : 325,390.64 = 153,672.59 : x
  2. Step 2: Convert to fraction form
    217,167.28/325,390.64 = 153,672.59/x
  3. Step 3: Cross multiply
    217,167.28x = 325,390.64 × 153,672.59
  4. Step 4: Simplify right side
    217,167.28x = 50,003,622,455.67
  5. Step 5: Solve for x
    x = 50,003,622,455.67/217,167.28
  6. Step 6: Final answer
    x = 230,253.95

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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.