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Finding the Fourth Proportional to 519,531.18, 779,288.25 and 164,544.54

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Solution

The fourth proportional to 519,531.18, 779,288.25 and 164,544.54 is: 246,814.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,531.18 : 779,288.25 = 164,544.54 : x
  2. Step 2: Convert to fraction form
    519,531.18/779,288.25 = 164,544.54/x
  3. Step 3: Cross multiply
    519,531.18x = 779,288.25 × 164,544.54
  4. Step 4: Simplify right side
    519,531.18x = 128,227,626,623.66
  5. Step 5: Solve for x
    x = 128,227,626,623.66/519,531.18
  6. Step 6: Final answer
    x = 246,814.11

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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.