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Finding the Fourth Proportional to 203,275.22, 304,961.28 and 70,156.64

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Solution

The fourth proportional to 203,275.22, 304,961.28 and 70,156.64 is: 105,251.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,275.22 : 304,961.28 = 70,156.64 : x
  2. Step 2: Convert to fraction form
    203,275.22/304,961.28 = 70,156.64/x
  3. Step 3: Cross multiply
    203,275.22x = 304,961.28 × 70,156.64
  4. Step 4: Simplify right side
    203,275.22x = 21,395,058,734.90
  5. Step 5: Solve for x
    x = 21,395,058,734.90/203,275.22
  6. Step 6: Final answer
    x = 105,251.68

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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.