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Finding the Fourth Proportional to 519,671.70, 779,529.42 and 164,699.73

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Solution

The fourth proportional to 519,671.70, 779,529.42 and 164,699.73 is: 247,056.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,671.70 : 779,529.42 = 164,699.73 : x
  2. Step 2: Convert to fraction form
    519,671.70/779,529.42 = 164,699.73/x
  3. Step 3: Cross multiply
    519,671.70x = 779,529.42 × 164,699.73
  4. Step 4: Simplify right side
    519,671.70x = 128,388,285,001.06
  5. Step 5: Solve for x
    x = 128,388,285,001.06/519,671.70
  6. Step 6: Final answer
    x = 247,056.53

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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.