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Finding the Fourth Proportional to 202,215.40, 303,323.10 and 170,722.60

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Solution

The fourth proportional to 202,215.40, 303,323.10 and 170,722.60 is: 256,083.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,215.40 : 303,323.10 = 170,722.60 : x
  2. Step 2: Convert to fraction form
    202,215.40/303,323.10 = 170,722.60/x
  3. Step 3: Cross multiply
    202,215.40x = 303,323.10 × 170,722.60
  4. Step 4: Simplify right side
    202,215.40x = 51,784,108,272.06
  5. Step 5: Solve for x
    x = 51,784,108,272.06/202,215.40
  6. Step 6: Final answer
    x = 256,083.90

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1.5x scale

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.