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Finding the Fourth Proportional to 358,137.54, 537,212.52 and 121,486.32

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Solution

The fourth proportional to 358,137.54, 537,212.52 and 121,486.32 is: 182,231.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,137.54 : 537,212.52 = 121,486.32 : x
  2. Step 2: Convert to fraction form
    358,137.54/537,212.52 = 121,486.32/x
  3. Step 3: Cross multiply
    358,137.54x = 537,212.52 × 121,486.32
  4. Step 4: Simplify right side
    358,137.54x = 65,263,972,112.73
  5. Step 5: Solve for x
    x = 65,263,972,112.73/358,137.54
  6. Step 6: Final answer
    x = 182,231.59

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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.