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Finding the Fourth Proportional to 519,063.21, 778,601.30 and 164,108.25

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Solution

The fourth proportional to 519,063.21, 778,601.30 and 164,108.25 is: 246,164.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,063.21 : 778,601.30 = 164,108.25 : x
  2. Step 2: Convert to fraction form
    519,063.21/778,601.30 = 164,108.25/x
  3. Step 3: Cross multiply
    519,063.21x = 778,601.30 × 164,108.25
  4. Step 4: Simplify right side
    519,063.21x = 127,774,895,970.18
  5. Step 5: Solve for x
    x = 127,774,895,970.18/519,063.21
  6. Step 6: Final answer
    x = 246,164.42

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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.