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Finding the Fourth Proportional to 226,604.45, 312,722.01 and 124,637.64

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Solution

The fourth proportional to 226,604.45, 312,722.01 and 124,637.64 is: 172,004.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,604.45 : 312,722.01 = 124,637.64 : x
  2. Step 2: Convert to fraction form
    226,604.45/312,722.01 = 124,637.64/x
  3. Step 3: Cross multiply
    226,604.45x = 312,722.01 × 124,637.64
  4. Step 4: Simplify right side
    226,604.45x = 38,976,933,302.46
  5. Step 5: Solve for x
    x = 38,976,933,302.46/226,604.45
  6. Step 6: Final answer
    x = 172,004.28

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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.