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Finding the Fourth Proportional to 153,286.91, 229,930.45 and 73,305.98

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Solution

The fourth proportional to 153,286.91, 229,930.45 and 73,305.98 is: 109,959.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,286.91 : 229,930.45 = 73,305.98 : x
  2. Step 2: Convert to fraction form
    153,286.91/229,930.45 = 73,305.98/x
  3. Step 3: Cross multiply
    153,286.91x = 229,930.45 × 73,305.98
  4. Step 4: Simplify right side
    153,286.91x = 16,855,275,636.17
  5. Step 5: Solve for x
    x = 16,855,275,636.17/153,286.91
  6. Step 6: Final answer
    x = 109,959.01

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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.