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Finding the Fourth Proportional to 170,143.95, 255,196.44 and 45,494.67

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Solution

The fourth proportional to 170,143.95, 255,196.44 and 45,494.67 is: 68,236.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,143.95 : 255,196.44 = 45,494.67 : x
  2. Step 2: Convert to fraction form
    170,143.95/255,196.44 = 45,494.67/x
  3. Step 3: Cross multiply
    170,143.95x = 255,196.44 × 45,494.67
  4. Step 4: Simplify right side
    170,143.95x = 11,610,077,822.97
  5. Step 5: Solve for x
    x = 11,610,077,822.97/170,143.95
  6. Step 6: Final answer
    x = 68,236.79

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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.