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Finding the Fourth Proportional to 227,418.50, 313,800.54 and 136,752.68

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Solution

The fourth proportional to 227,418.50, 313,800.54 and 136,752.68 is: 188,696.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,418.50 : 313,800.54 = 136,752.68 : x
  2. Step 2: Convert to fraction form
    227,418.50/313,800.54 = 136,752.68/x
  3. Step 3: Cross multiply
    227,418.50x = 313,800.54 × 136,752.68
  4. Step 4: Simplify right side
    227,418.50x = 42,913,064,830.45
  5. Step 5: Solve for x
    x = 42,913,064,830.45/227,418.50
  6. Step 6: Final answer
    x = 188,696.46

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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.