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Finding the Fourth Proportional to 554,085.46, 831,128.41 and 133,361.33

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Solution

The fourth proportional to 554,085.46, 831,128.41 and 133,361.33 is: 200,042.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,085.46 : 831,128.41 = 133,361.33 : x
  2. Step 2: Convert to fraction form
    554,085.46/831,128.41 = 133,361.33/x
  3. Step 3: Cross multiply
    554,085.46x = 831,128.41 × 133,361.33
  4. Step 4: Simplify right side
    554,085.46x = 110,840,390,158.39
  5. Step 5: Solve for x
    x = 110,840,390,158.39/554,085.46
  6. Step 6: Final answer
    x = 200,042.05

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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.