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Finding the Fourth Proportional to 326,626.53, 489,939.57 and 102,006.22

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Solution

The fourth proportional to 326,626.53, 489,939.57 and 102,006.22 is: 153,009.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,626.53 : 489,939.57 = 102,006.22 : x
  2. Step 2: Convert to fraction form
    326,626.53/489,939.57 = 102,006.22/x
  3. Step 3: Cross multiply
    326,626.53x = 489,939.57 × 102,006.22
  4. Step 4: Simplify right side
    326,626.53x = 49,976,883,564.13
  5. Step 5: Solve for x
    x = 49,976,883,564.13/326,626.53
  6. Step 6: Final answer
    x = 153,009.26

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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.