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Finding the Fourth Proportional to 170,852.70, 256,279.05 and 152,481.90

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Solution

The fourth proportional to 170,852.70, 256,279.05 and 152,481.90 is: 228,722.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,852.70 : 256,279.05 = 152,481.90 : x
  2. Step 2: Convert to fraction form
    170,852.70/256,279.05 = 152,481.90/x
  3. Step 3: Cross multiply
    170,852.70x = 256,279.05 × 152,481.90
  4. Step 4: Simplify right side
    170,852.70x = 39,077,916,474.20
  5. Step 5: Solve for x
    x = 39,077,916,474.20/170,852.70
  6. Step 6: Final answer
    x = 228,722.85

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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.