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Finding the Fourth Proportional to 246,645, 369,979.65 and 80,433

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Solution

The fourth proportional to 246,645, 369,979.65 and 80,433 is: 120,653.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,645 : 369,979.65 = 80,433 : x
  2. Step 2: Convert to fraction form
    246,645/369,979.65 = 80,433/x
  3. Step 3: Cross multiply
    246,645x = 369,979.65 × 80,433
  4. Step 4: Simplify right side
    246,645x = 29,758,573,188.45
  5. Step 5: Solve for x
    x = 29,758,573,188.45/246,645
  6. Step 6: Final answer
    x = 120,653.46

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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.