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Finding the Fourth Proportional to 223,260, 334,802.52 and 90,115.44

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Solution

The fourth proportional to 223,260, 334,802.52 and 90,115.44 is: 135,137.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,260 : 334,802.52 = 90,115.44 : x
  2. Step 2: Convert to fraction form
    223,260/334,802.52 = 90,115.44/x
  3. Step 3: Cross multiply
    223,260x = 334,802.52 × 90,115.44
  4. Step 4: Simplify right side
    223,260x = 30,170,876,402.91
  5. Step 5: Solve for x
    x = 30,170,876,402.91/223,260
  6. Step 6: Final answer
    x = 135,137.85

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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.