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Finding the Fourth Proportional to 226,221.50, 312,185.67 and 125,619.50

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Solution

The fourth proportional to 226,221.50, 312,185.67 and 125,619.50 is: 173,354.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,221.50 : 312,185.67 = 125,619.50 : x
  2. Step 2: Convert to fraction form
    226,221.50/312,185.67 = 125,619.50/x
  3. Step 3: Cross multiply
    226,221.50x = 312,185.67 × 125,619.50
  4. Step 4: Simplify right side
    226,221.50x = 39,216,607,772.57
  5. Step 5: Solve for x
    x = 39,216,607,772.57/226,221.50
  6. Step 6: Final answer
    x = 173,354.91

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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.