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Finding the Fourth Proportional to 226,388.68, 312,401.28 and 124,411.96

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Solution

The fourth proportional to 226,388.68, 312,401.28 and 124,411.96 is: 171,680.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,388.68 : 312,401.28 = 124,411.96 : x
  2. Step 2: Convert to fraction form
    226,388.68/312,401.28 = 124,411.96/x
  3. Step 3: Cross multiply
    226,388.68x = 312,401.28 × 124,411.96
  4. Step 4: Simplify right side
    226,388.68x = 38,866,455,551.31
  5. Step 5: Solve for x
    x = 38,866,455,551.31/226,388.68
  6. Step 6: Final answer
    x = 171,680.21

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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.