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Finding the Fourth Proportional to 268,951.34, 403,362.42 and 79,360.48

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Solution

The fourth proportional to 268,951.34, 403,362.42 and 79,360.48 is: 119,021.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,951.34 : 403,362.42 = 79,360.48 : x
  2. Step 2: Convert to fraction form
    268,951.34/403,362.42 = 79,360.48/x
  3. Step 3: Cross multiply
    268,951.34x = 403,362.42 × 79,360.48
  4. Step 4: Simplify right side
    268,951.34x = 32,011,034,388.49
  5. Step 5: Solve for x
    x = 32,011,034,388.49/268,951.34
  6. Step 6: Final answer
    x = 119,021.66

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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.