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Finding the Fourth Proportional to 225,427.79, 338,015.01 and 154,430.48

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Solution

The fourth proportional to 225,427.79, 338,015.01 and 154,430.48 is: 231,558.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,427.79 : 338,015.01 = 154,430.48 : x
  2. Step 2: Convert to fraction form
    225,427.79/338,015.01 = 154,430.48/x
  3. Step 3: Cross multiply
    225,427.79x = 338,015.01 × 154,430.48
  4. Step 4: Simplify right side
    225,427.79x = 52,199,818,551.43
  5. Step 5: Solve for x
    x = 52,199,818,551.43/225,427.79
  6. Step 6: Final answer
    x = 231,558.94

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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.