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Finding the Fourth Proportional to 226,009.64, 311,910.54 and 125,407.64

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Solution

The fourth proportional to 226,009.64, 311,910.54 and 125,407.64 is: 173,072.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,009.64 : 311,910.54 = 125,407.64 : x
  2. Step 2: Convert to fraction form
    226,009.64/311,910.54 = 125,407.64/x
  3. Step 3: Cross multiply
    226,009.64x = 311,910.54 × 125,407.64
  4. Step 4: Simplify right side
    226,009.64x = 39,115,964,712.53
  5. Step 5: Solve for x
    x = 39,115,964,712.53/226,009.64
  6. Step 6: Final answer
    x = 173,072.11

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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.