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Finding the Fourth Proportional to 246,651.01, 369,986.85 and 78,167.64

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Solution

The fourth proportional to 246,651.01, 369,986.85 and 78,167.64 is: 117,254.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,651.01 : 369,986.85 = 78,167.64 : x
  2. Step 2: Convert to fraction form
    246,651.01/369,986.85 = 78,167.64/x
  3. Step 3: Cross multiply
    246,651.01x = 369,986.85 × 78,167.64
  4. Step 4: Simplify right side
    246,651.01x = 28,920,998,895.53
  5. Step 5: Solve for x
    x = 28,920,998,895.53/246,651.01
  6. Step 6: Final answer
    x = 117,254.74

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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.