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Finding the Fourth Proportional to 223,418.01, 335,365.76 and 90,385.23

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Solution

The fourth proportional to 223,418.01, 335,365.76 and 90,385.23 is: 135,674.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,418.01 : 335,365.76 = 90,385.23 : x
  2. Step 2: Convert to fraction form
    223,418.01/335,365.76 = 90,385.23/x
  3. Step 3: Cross multiply
    223,418.01x = 335,365.76 × 90,385.23
  4. Step 4: Simplify right side
    223,418.01x = 30,312,111,351.72
  5. Step 5: Solve for x
    x = 30,312,111,351.72/223,418.01
  6. Step 6: Final answer
    x = 135,674.43

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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.