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Finding the Fourth Proportional to 170,487.92, 255,722.57 and 52,159.28

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Solution

The fourth proportional to 170,487.92, 255,722.57 and 52,159.28 is: 78,236.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,487.92 : 255,722.57 = 52,159.28 : x
  2. Step 2: Convert to fraction form
    170,487.92/255,722.57 = 52,159.28/x
  3. Step 3: Cross multiply
    170,487.92x = 255,722.57 × 52,159.28
  4. Step 4: Simplify right side
    170,487.92x = 13,338,303,787.14
  5. Step 5: Solve for x
    x = 13,338,303,787.14/170,487.92
  6. Step 6: Final answer
    x = 78,236.06

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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.