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Finding the Fourth Proportional to 226,461.45, 312,520.71 and 124,491.21

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Solution

The fourth proportional to 226,461.45, 312,520.71 and 124,491.21 is: 171,800.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,461.45 : 312,520.71 = 124,491.21 : x
  2. Step 2: Convert to fraction form
    226,461.45/312,520.71 = 124,491.21/x
  3. Step 3: Cross multiply
    226,461.45x = 312,520.71 × 124,491.21
  4. Step 4: Simplify right side
    226,461.45x = 38,906,081,337.96
  5. Step 5: Solve for x
    x = 38,906,081,337.96/226,461.45
  6. Step 6: Final answer
    x = 171,800.02

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1.5x scale

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.