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Finding the Fourth Proportional to 226,405.53, 339,870.74 and 121,429.53

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Solution

The fourth proportional to 226,405.53, 339,870.74 and 121,429.53 is: 182,285.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,405.53 : 339,870.74 = 121,429.53 : x
  2. Step 2: Convert to fraction form
    226,405.53/339,870.74 = 121,429.53/x
  3. Step 3: Cross multiply
    226,405.53x = 339,870.74 × 121,429.53
  4. Step 4: Simplify right side
    226,405.53x = 41,270,343,611.80
  5. Step 5: Solve for x
    x = 41,270,343,611.80/226,405.53
  6. Step 6: Final answer
    x = 182,285.05

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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.