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Finding the Fourth Proportional to 225,321.26, 310,612.07 and 171,512.56

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Solution

The fourth proportional to 225,321.26, 310,612.07 and 171,512.56 is: 236,435.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,321.26 : 310,612.07 = 171,512.56 : x
  2. Step 2: Convert to fraction form
    225,321.26/310,612.07 = 171,512.56/x
  3. Step 3: Cross multiply
    225,321.26x = 310,612.07 × 171,512.56
  4. Step 4: Simplify right side
    225,321.26x = 53,273,868,881.98
  5. Step 5: Solve for x
    x = 53,273,868,881.98/225,321.26
  6. Step 6: Final answer
    x = 236,435.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.