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Finding the Fourth Proportional to 223,572.16, 335,367.36 and 71,784.64

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Solution

The fourth proportional to 223,572.16, 335,367.36 and 71,784.64 is: 107,679.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,572.16 : 335,367.36 = 71,784.64 : x
  2. Step 2: Convert to fraction form
    223,572.16/335,367.36 = 71,784.64/x
  3. Step 3: Cross multiply
    223,572.16x = 335,367.36 × 71,784.64
  4. Step 4: Simplify right side
    223,572.16x = 24,074,225,205.35
  5. Step 5: Solve for x
    x = 24,074,225,205.35/223,572.16
  6. Step 6: Final answer
    x = 107,679.89

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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.