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Finding the Fourth Proportional to 350,807.61, 484,115.68 and 189,663.81

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Solution

The fourth proportional to 350,807.61, 484,115.68 and 189,663.81 is: 261,736.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,807.61 : 484,115.68 = 189,663.81 : x
  2. Step 2: Convert to fraction form
    350,807.61/484,115.68 = 189,663.81/x
  3. Step 3: Cross multiply
    350,807.61x = 484,115.68 × 189,663.81
  4. Step 4: Simplify right side
    350,807.61x = 91,819,222,059.95
  5. Step 5: Solve for x
    x = 91,819,222,059.95/350,807.61
  6. Step 6: Final answer
    x = 261,736.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.