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Finding the Fourth Proportional to 246,289.69, 369,489.89 and 77,820.12

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Solution

The fourth proportional to 246,289.69, 369,489.89 and 77,820.12 is: 116,747.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,289.69 : 369,489.89 = 77,820.12 : x
  2. Step 2: Convert to fraction form
    246,289.69/369,489.89 = 77,820.12/x
  3. Step 3: Cross multiply
    246,289.69x = 369,489.89 × 77,820.12
  4. Step 4: Simplify right side
    246,289.69x = 28,753,748,962.69
  5. Step 5: Solve for x
    x = 28,753,748,962.69/246,289.69
  6. Step 6: Final answer
    x = 116,747.68

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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.