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Finding the Fourth Proportional to 395,357.78, 593,094.60 and 125,395.85

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Solution

The fourth proportional to 395,357.78, 593,094.60 and 125,395.85 is: 188,112.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,357.78 : 593,094.60 = 125,395.85 : x
  2. Step 2: Convert to fraction form
    395,357.78/593,094.60 = 125,395.85/x
  3. Step 3: Cross multiply
    395,357.78x = 593,094.60 × 125,395.85
  4. Step 4: Simplify right side
    395,357.78x = 74,371,598,531.94
  5. Step 5: Solve for x
    x = 74,371,598,531.94/395,357.78
  6. Step 6: Final answer
    x = 188,112.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.