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Finding the Fourth Proportional to 170,630.46, 255,836.31 and 70,859.52

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Solution

The fourth proportional to 170,630.46, 255,836.31 and 70,859.52 is: 106,243.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,630.46 : 255,836.31 = 70,859.52 : x
  2. Step 2: Convert to fraction form
    170,630.46/255,836.31 = 70,859.52/x
  3. Step 3: Cross multiply
    170,630.46x = 255,836.31 × 70,859.52
  4. Step 4: Simplify right side
    170,630.46x = 18,128,438,125.17
  5. Step 5: Solve for x
    x = 18,128,438,125.17/170,630.46
  6. Step 6: Final answer
    x = 106,243.86

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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.