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Finding the Fourth Proportional to 225,089.20, 337,585.20 and 98,729.20

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Solution

The fourth proportional to 225,089.20, 337,585.20 and 98,729.20 is: 148,072.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,089.20 : 337,585.20 = 98,729.20 : x
  2. Step 2: Convert to fraction form
    225,089.20/337,585.20 = 98,729.20/x
  3. Step 3: Cross multiply
    225,089.20x = 337,585.20 × 98,729.20
  4. Step 4: Simplify right side
    225,089.20x = 33,329,516,727.84
  5. Step 5: Solve for x
    x = 33,329,516,727.84/225,089.20
  6. Step 6: Final answer
    x = 148,072.48

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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.