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Finding the Fourth Proportional to 225,784.59, 338,879.93 and 120,693.39

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Solution

The fourth proportional to 225,784.59, 338,879.93 and 120,693.39 is: 181,148.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,784.59 : 338,879.93 = 120,693.39 : x
  2. Step 2: Convert to fraction form
    225,784.59/338,879.93 = 120,693.39/x
  3. Step 3: Cross multiply
    225,784.59x = 338,879.93 × 120,693.39
  4. Step 4: Simplify right side
    225,784.59x = 40,900,566,951.20
  5. Step 5: Solve for x
    x = 40,900,566,951.20/225,784.59
  6. Step 6: Final answer
    x = 181,148.62

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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.