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Finding the Fourth Proportional to 270,076.44, 372,706.20 and 149,221.20

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Solution

The fourth proportional to 270,076.44, 372,706.20 and 149,221.20 is: 205,925.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,076.44 : 372,706.20 = 149,221.20 : x
  2. Step 2: Convert to fraction form
    270,076.44/372,706.20 = 149,221.20/x
  3. Step 3: Cross multiply
    270,076.44x = 372,706.20 × 149,221.20
  4. Step 4: Simplify right side
    270,076.44x = 55,615,666,411.44
  5. Step 5: Solve for x
    x = 55,615,666,411.44/270,076.44
  6. Step 6: Final answer
    x = 205,925.65

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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.