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Finding the Fourth Proportional to 440,976.73, 661,468.74 and 141,459.79

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Solution

The fourth proportional to 440,976.73, 661,468.74 and 141,459.79 is: 212,190.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,976.73 : 661,468.74 = 141,459.79 : x
  2. Step 2: Convert to fraction form
    440,976.73/661,468.74 = 141,459.79/x
  3. Step 3: Cross multiply
    440,976.73x = 661,468.74 × 141,459.79
  4. Step 4: Simplify right side
    440,976.73x = 93,571,225,037.32
  5. Step 5: Solve for x
    x = 93,571,225,037.32/440,976.73
  6. Step 6: Final answer
    x = 212,190.85

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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.