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Finding the Fourth Proportional to 223,716.48, 335,341.44 and 90,688.56

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Solution

The fourth proportional to 223,716.48, 335,341.44 and 90,688.56 is: 135,938.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,716.48 : 335,341.44 = 90,688.56 : x
  2. Step 2: Convert to fraction form
    223,716.48/335,341.44 = 90,688.56/x
  3. Step 3: Cross multiply
    223,716.48x = 335,341.44 × 90,688.56
  4. Step 4: Simplify right side
    223,716.48x = 30,411,632,301.93
  5. Step 5: Solve for x
    x = 30,411,632,301.93/223,716.48
  6. Step 6: Final answer
    x = 135,938.27

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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.