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Finding the Fourth Proportional to 554,010.64, 831,016.19 and 133,286.51

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Solution

The fourth proportional to 554,010.64, 831,016.19 and 133,286.51 is: 199,929.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,010.64 : 831,016.19 = 133,286.51 : x
  2. Step 2: Convert to fraction form
    554,010.64/831,016.19 = 133,286.51/x
  3. Step 3: Cross multiply
    554,010.64x = 831,016.19 × 133,286.51
  4. Step 4: Simplify right side
    554,010.64x = 110,763,250,129.35
  5. Step 5: Solve for x
    x = 110,763,250,129.35/554,010.64
  6. Step 6: Final answer
    x = 199,929.83

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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.