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Finding the Fourth Proportional to 183,859.20, 253,758.72 and 108,403.20

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Solution

The fourth proportional to 183,859.20, 253,758.72 and 108,403.20 is: 149,615.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,859.20 : 253,758.72 = 108,403.20 : x
  2. Step 2: Convert to fraction form
    183,859.20/253,758.72 = 108,403.20/x
  3. Step 3: Cross multiply
    183,859.20x = 253,758.72 × 108,403.20
  4. Step 4: Simplify right side
    183,859.20x = 27,508,257,275.90
  5. Step 5: Solve for x
    x = 27,508,257,275.90/183,859.20
  6. Step 6: Final answer
    x = 149,615.89

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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.