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Finding the Fourth Proportional to 223,378.22, 335,066.68 and 90,256.93

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Solution

The fourth proportional to 223,378.22, 335,066.68 and 90,256.93 is: 135,385.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,378.22 : 335,066.68 = 90,256.93 : x
  2. Step 2: Convert to fraction form
    223,378.22/335,066.68 = 90,256.93/x
  3. Step 3: Cross multiply
    223,378.22x = 335,066.68 × 90,256.93
  4. Step 4: Simplify right side
    223,378.22x = 30,242,087,755.47
  5. Step 5: Solve for x
    x = 30,242,087,755.47/223,378.22
  6. Step 6: Final answer
    x = 135,385.12

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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.