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Finding the Fourth Proportional to 554,081.34, 831,122.19 and 133,357.22

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Solution

The fourth proportional to 554,081.34, 831,122.19 and 133,357.22 is: 200,035.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,081.34 : 831,122.19 = 133,357.22 : x
  2. Step 2: Convert to fraction form
    554,081.34/831,122.19 = 133,357.22/x
  3. Step 3: Cross multiply
    554,081.34x = 831,122.19 × 133,357.22
  4. Step 4: Simplify right side
    554,081.34x = 110,836,140,583.10
  5. Step 5: Solve for x
    x = 110,836,140,583.10/554,081.34
  6. Step 6: Final answer
    x = 200,035.87

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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.