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Finding the Fourth Proportional to 324,963.64, 487,237.71 and 156,148.03

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Solution

The fourth proportional to 324,963.64, 487,237.71 and 156,148.03 is: 234,122.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,963.64 : 487,237.71 = 156,148.03 : x
  2. Step 2: Convert to fraction form
    324,963.64/487,237.71 = 156,148.03/x
  3. Step 3: Cross multiply
    324,963.64x = 487,237.71 × 156,148.03
  4. Step 4: Simplify right side
    324,963.64x = 76,081,206,122.02
  5. Step 5: Solve for x
    x = 76,081,206,122.02/324,963.64
  6. Step 6: Final answer
    x = 234,122.22

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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.