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Finding the Fourth Proportional to 170,610.59, 255,708.33 and 120,705.08

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Solution

The fourth proportional to 170,610.59, 255,708.33 and 120,705.08 is: 180,910.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,610.59 : 255,708.33 = 120,705.08 : x
  2. Step 2: Convert to fraction form
    170,610.59/255,708.33 = 120,705.08/x
  3. Step 3: Cross multiply
    170,610.59x = 255,708.33 × 120,705.08
  4. Step 4: Simplify right side
    170,610.59x = 30,865,293,150.77
  5. Step 5: Solve for x
    x = 30,865,293,150.77/170,610.59
  6. Step 6: Final answer
    x = 180,910.77

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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.