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Finding the Fourth Proportional to 334,990.80, 502,486.20 and 110,385.90

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Solution

The fourth proportional to 334,990.80, 502,486.20 and 110,385.90 is: 165,578.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,990.80 : 502,486.20 = 110,385.90 : x
  2. Step 2: Convert to fraction form
    334,990.80/502,486.20 = 110,385.90/x
  3. Step 3: Cross multiply
    334,990.80x = 502,486.20 × 110,385.90
  4. Step 4: Simplify right side
    334,990.80x = 55,467,391,424.58
  5. Step 5: Solve for x
    x = 55,467,391,424.58/334,990.80
  6. Step 6: Final answer
    x = 165,578.85

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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.