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Finding the Fourth Proportional to 246,616.40, 369,935.37 and 78,149.15

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Solution

The fourth proportional to 246,616.40, 369,935.37 and 78,149.15 is: 117,227.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,616.40 : 369,935.37 = 78,149.15 : x
  2. Step 2: Convert to fraction form
    246,616.40/369,935.37 = 78,149.15/x
  3. Step 3: Cross multiply
    246,616.40x = 369,935.37 × 78,149.15
  4. Step 4: Simplify right side
    246,616.40x = 28,910,132,870.76
  5. Step 5: Solve for x
    x = 28,910,132,870.76/246,616.40
  6. Step 6: Final answer
    x = 117,227.13

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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.