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Finding the Fourth Proportional to 170,483.31, 255,735.21 and 52,155.68

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Solution

The fourth proportional to 170,483.31, 255,735.21 and 52,155.68 is: 78,236.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,483.31 : 255,735.21 = 52,155.68 : x
  2. Step 2: Convert to fraction form
    170,483.31/255,735.21 = 52,155.68/x
  3. Step 3: Cross multiply
    170,483.31x = 255,735.21 × 52,155.68
  4. Step 4: Simplify right side
    170,483.31x = 13,338,042,498.82
  5. Step 5: Solve for x
    x = 13,338,042,498.82/170,483.31
  6. Step 6: Final answer
    x = 78,236.65

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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.