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Finding the Fourth Proportional to 223,228.56, 334,840.80 and 90,014.48

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Solution

The fourth proportional to 223,228.56, 334,840.80 and 90,014.48 is: 135,020.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,228.56 : 334,840.80 = 90,014.48 : x
  2. Step 2: Convert to fraction form
    223,228.56/334,840.80 = 90,014.48/x
  3. Step 3: Cross multiply
    223,228.56x = 334,840.80 × 90,014.48
  4. Step 4: Simplify right side
    223,228.56x = 30,140,520,494.78
  5. Step 5: Solve for x
    x = 30,140,520,494.78/223,228.56
  6. Step 6: Final answer
    x = 135,020.90

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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.