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Finding the Fourth Proportional to 225,165.51, 337,747.40 and 90,289.88

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Solution

The fourth proportional to 225,165.51, 337,747.40 and 90,289.88 is: 135,434.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,165.51 : 337,747.40 = 90,289.88 : x
  2. Step 2: Convert to fraction form
    225,165.51/337,747.40 = 90,289.88/x
  3. Step 3: Cross multiply
    225,165.51x = 337,747.40 × 90,289.88
  4. Step 4: Simplify right side
    225,165.51x = 30,495,172,216.31
  5. Step 5: Solve for x
    x = 30,495,172,216.31/225,165.51
  6. Step 6: Final answer
    x = 135,434.47

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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.