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Finding the Fourth Proportional to 226,792.89, 312,993.65 and 124,838.60

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Solution

The fourth proportional to 226,792.89, 312,993.65 and 124,838.60 is: 172,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,792.89 : 312,993.65 = 124,838.60 : x
  2. Step 2: Convert to fraction form
    226,792.89/312,993.65 = 124,838.60/x
  3. Step 3: Cross multiply
    226,792.89x = 312,993.65 × 124,838.60
  4. Step 4: Simplify right side
    226,792.89x = 39,073,687,822.02
  5. Step 5: Solve for x
    x = 39,073,687,822.02/226,792.89
  6. Step 6: Final answer
    x = 172,287.98

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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.