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Finding the Fourth Proportional to 226,520.36, 312,563.66 and 124,550

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Solution

The fourth proportional to 226,520.36, 312,563.66 and 124,550 is: 171,860.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,520.36 : 312,563.66 = 124,550 : x
  2. Step 2: Convert to fraction form
    226,520.36/312,563.66 = 124,550/x
  3. Step 3: Cross multiply
    226,520.36x = 312,563.66 × 124,550
  4. Step 4: Simplify right side
    226,520.36x = 38,929,803,853
  5. Step 5: Solve for x
    x = 38,929,803,853/226,520.36
  6. Step 6: Final answer
    x = 171,860.07

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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.