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Finding the Fourth Proportional to 392,291.54, 588,437.31 and 111,801.50

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Solution

The fourth proportional to 392,291.54, 588,437.31 and 111,801.50 is: 167,702.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,291.54 : 588,437.31 = 111,801.50 : x
  2. Step 2: Convert to fraction form
    392,291.54/588,437.31 = 111,801.50/x
  3. Step 3: Cross multiply
    392,291.54x = 588,437.31 × 111,801.50
  4. Step 4: Simplify right side
    392,291.54x = 65,788,173,913.97
  5. Step 5: Solve for x
    x = 65,788,173,913.97/392,291.54
  6. Step 6: Final answer
    x = 167,702.25

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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.