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Finding the Fourth Proportional to 203,497.04, 305,073.30 and 77,067.58

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Solution

The fourth proportional to 203,497.04, 305,073.30 and 77,067.58 is: 115,536.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,497.04 : 305,073.30 = 77,067.58 : x
  2. Step 2: Convert to fraction form
    203,497.04/305,073.30 = 77,067.58/x
  3. Step 3: Cross multiply
    203,497.04x = 305,073.30 × 77,067.58
  4. Step 4: Simplify right side
    203,497.04x = 23,511,260,953.61
  5. Step 5: Solve for x
    x = 23,511,260,953.61/203,497.04
  6. Step 6: Final answer
    x = 115,536.13

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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.