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Finding the Fourth Proportional to 395,801.52, 593,785.53 and 129,541.38

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Solution

The fourth proportional to 395,801.52, 593,785.53 and 129,541.38 is: 194,339.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,801.52 : 593,785.53 = 129,541.38 : x
  2. Step 2: Convert to fraction form
    395,801.52/593,785.53 = 129,541.38/x
  3. Step 3: Cross multiply
    395,801.52x = 593,785.53 × 129,541.38
  4. Step 4: Simplify right side
    395,801.52x = 76,919,796,980.23
  5. Step 5: Solve for x
    x = 76,919,796,980.23/395,801.52
  6. Step 6: Final answer
    x = 194,339.32

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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.