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Finding the Fourth Proportional to 243,113.42, 335,094.97 and 162,511.54

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Solution

The fourth proportional to 243,113.42, 335,094.97 and 162,511.54 is: 223,997.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,113.42 : 335,094.97 = 162,511.54 : x
  2. Step 2: Convert to fraction form
    243,113.42/335,094.97 = 162,511.54/x
  3. Step 3: Cross multiply
    243,113.42x = 335,094.97 × 162,511.54
  4. Step 4: Simplify right side
    243,113.42x = 54,456,799,620.95
  5. Step 5: Solve for x
    x = 54,456,799,620.95/243,113.42
  6. Step 6: Final answer
    x = 223,997.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.