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Finding the Fourth Proportional to 225,401, 311,063.10 and 124,799

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Solution

The fourth proportional to 225,401, 311,063.10 and 124,799 is: 172,228.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,401 : 311,063.10 = 124,799 : x
  2. Step 2: Convert to fraction form
    225,401/311,063.10 = 124,799/x
  3. Step 3: Cross multiply
    225,401x = 311,063.10 × 124,799
  4. Step 4: Simplify right side
    225,401x = 38,820,363,816.90
  5. Step 5: Solve for x
    x = 38,820,363,816.90/225,401
  6. Step 6: Final answer
    x = 172,228.00

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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.