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Finding the Fourth Proportional to 324,437.10, 486,702.23 and 99,816.41

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Solution

The fourth proportional to 324,437.10, 486,702.23 and 99,816.41 is: 149,738.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,437.10 : 486,702.23 = 99,816.41 : x
  2. Step 2: Convert to fraction form
    324,437.10/486,702.23 = 99,816.41/x
  3. Step 3: Cross multiply
    324,437.10x = 486,702.23 × 99,816.41
  4. Step 4: Simplify right side
    324,437.10x = 48,580,866,405.00
  5. Step 5: Solve for x
    x = 48,580,866,405.00/324,437.10
  6. Step 6: Final answer
    x = 149,738.94

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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.