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Finding the Fourth Proportional to 220,547.36, 330,717.35 and 154,062.56

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Solution

The fourth proportional to 220,547.36, 330,717.35 and 154,062.56 is: 231,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,547.36 : 330,717.35 = 154,062.56 : x
  2. Step 2: Convert to fraction form
    220,547.36/330,717.35 = 154,062.56/x
  3. Step 3: Cross multiply
    220,547.36x = 330,717.35 × 154,062.56
  4. Step 4: Simplify right side
    220,547.36x = 50,951,159,153.52
  5. Step 5: Solve for x
    x = 50,951,159,153.52/220,547.36
  6. Step 6: Final answer
    x = 231,021.40

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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.