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Finding the Fourth Proportional to 324,963.96, 487,395.54 and 125,377.80

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Solution

The fourth proportional to 324,963.96, 487,395.54 and 125,377.80 is: 188,047.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,963.96 : 487,395.54 = 125,377.80 : x
  2. Step 2: Convert to fraction form
    324,963.96/487,395.54 = 125,377.80/x
  3. Step 3: Cross multiply
    324,963.96x = 487,395.54 × 125,377.80
  4. Step 4: Simplify right side
    324,963.96x = 61,108,580,535.01
  5. Step 5: Solve for x
    x = 61,108,580,535.01/324,963.96
  6. Step 6: Final answer
    x = 188,047.25

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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.