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Finding the Fourth Proportional to 521,997.36, 783,094.44 and 166,916.04

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Solution

The fourth proportional to 521,997.36, 783,094.44 and 166,916.04 is: 250,405.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,997.36 : 783,094.44 = 166,916.04 : x
  2. Step 2: Convert to fraction form
    521,997.36/783,094.44 = 166,916.04/x
  3. Step 3: Cross multiply
    521,997.36x = 783,094.44 × 166,916.04
  4. Step 4: Simplify right side
    521,997.36x = 130,711,022,870.82
  5. Step 5: Solve for x
    x = 130,711,022,870.82/521,997.36
  6. Step 6: Final answer
    x = 250,405.52

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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.