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Finding the Fourth Proportional to 225,705.60, 338,644.80 and 100,956.96

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Solution

The fourth proportional to 225,705.60, 338,644.80 and 100,956.96 is: 151,474.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,705.60 : 338,644.80 = 100,956.96 : x
  2. Step 2: Convert to fraction form
    225,705.60/338,644.80 = 100,956.96/x
  3. Step 3: Cross multiply
    225,705.60x = 338,644.80 × 100,956.96
  4. Step 4: Simplify right side
    225,705.60x = 34,188,549,527.81
  5. Step 5: Solve for x
    x = 34,188,549,527.81/225,705.60
  6. Step 6: Final answer
    x = 151,474.09

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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.