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Finding the Fourth Proportional to 226,115.40, 312,043.98 and 124,144.92

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Solution

The fourth proportional to 226,115.40, 312,043.98 and 124,144.92 is: 171,322.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,115.40 : 312,043.98 = 124,144.92 : x
  2. Step 2: Convert to fraction form
    226,115.40/312,043.98 = 124,144.92/x
  3. Step 3: Cross multiply
    226,115.40x = 312,043.98 × 124,144.92
  4. Step 4: Simplify right side
    226,115.40x = 38,738,674,933.58
  5. Step 5: Solve for x
    x = 38,738,674,933.58/226,115.40
  6. Step 6: Final answer
    x = 171,322.59

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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.