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Finding the Fourth Proportional to 223,778.72, 335,698.99 and 71,980.06

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Solution

The fourth proportional to 223,778.72, 335,698.99 and 71,980.06 is: 107,980.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,778.72 : 335,698.99 = 71,980.06 : x
  2. Step 2: Convert to fraction form
    223,778.72/335,698.99 = 71,980.06/x
  3. Step 3: Cross multiply
    223,778.72x = 335,698.99 × 71,980.06
  4. Step 4: Simplify right side
    223,778.72x = 24,163,633,442.14
  5. Step 5: Solve for x
    x = 24,163,633,442.14/223,778.72
  6. Step 6: Final answer
    x = 107,980.03

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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.