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Finding the Fourth Proportional to 203,904.46, 305,859.77 and 70,788.95

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Solution

The fourth proportional to 203,904.46, 305,859.77 and 70,788.95 is: 106,184.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,904.46 : 305,859.77 = 70,788.95 : x
  2. Step 2: Convert to fraction form
    203,904.46/305,859.77 = 70,788.95/x
  3. Step 3: Cross multiply
    203,904.46x = 305,859.77 × 70,788.95
  4. Step 4: Simplify right side
    203,904.46x = 21,651,490,082.30
  5. Step 5: Solve for x
    x = 21,651,490,082.30/203,904.46
  6. Step 6: Final answer
    x = 106,184.49

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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.