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Finding the Fourth Proportional to 253,031.19, 348,900.49 and 206,947.35

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Solution

The fourth proportional to 253,031.19, 348,900.49 and 206,947.35 is: 285,356.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,031.19 : 348,900.49 = 206,947.35 : x
  2. Step 2: Convert to fraction form
    253,031.19/348,900.49 = 206,947.35/x
  3. Step 3: Cross multiply
    253,031.19x = 348,900.49 × 206,947.35
  4. Step 4: Simplify right side
    253,031.19x = 72,204,031,819.20
  5. Step 5: Solve for x
    x = 72,204,031,819.20/253,031.19
  6. Step 6: Final answer
    x = 285,356.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.