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Finding the Fourth Proportional to 268,638.94, 402,803.85 and 160,676.14

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Solution

The fourth proportional to 268,638.94, 402,803.85 and 160,676.14 is: 240,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,638.94 : 402,803.85 = 160,676.14 : x
  2. Step 2: Convert to fraction form
    268,638.94/402,803.85 = 160,676.14/x
  3. Step 3: Cross multiply
    268,638.94x = 402,803.85 × 160,676.14
  4. Step 4: Simplify right side
    268,638.94x = 64,720,965,781.12
  5. Step 5: Solve for x
    x = 64,720,965,781.12/268,638.94
  6. Step 6: Final answer
    x = 240,921.76

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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.