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Finding the Fourth Proportional to 223,367.55, 335,051.33 and 128,889.15

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Solution

The fourth proportional to 223,367.55, 335,051.33 and 128,889.15 is: 193,333.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,367.55 : 335,051.33 = 128,889.15 : x
  2. Step 2: Convert to fraction form
    223,367.55/335,051.33 = 128,889.15/x
  3. Step 3: Cross multiply
    223,367.55x = 335,051.33 × 128,889.15
  4. Step 4: Simplify right side
    223,367.55x = 43,184,480,485.62
  5. Step 5: Solve for x
    x = 43,184,480,485.62/223,367.55
  6. Step 6: Final answer
    x = 193,333.73

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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.