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Finding the Fourth Proportional to 225,310.63, 310,907.41 and 134,648.55

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Solution

The fourth proportional to 225,310.63, 310,907.41 and 134,648.55 is: 185,802.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,310.63 : 310,907.41 = 134,648.55 : x
  2. Step 2: Convert to fraction form
    225,310.63/310,907.41 = 134,648.55/x
  3. Step 3: Cross multiply
    225,310.63x = 310,907.41 × 134,648.55
  4. Step 4: Simplify right side
    225,310.63x = 41,863,231,940.76
  5. Step 5: Solve for x
    x = 41,863,231,940.76/225,310.63
  6. Step 6: Final answer
    x = 185,802.29

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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.