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Finding the Fourth Proportional to 554,084.45, 831,126.83 and 133,360.32

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Solution

The fourth proportional to 554,084.45, 831,126.83 and 133,360.32 is: 200,040.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,084.45 : 831,126.83 = 133,360.32 : x
  2. Step 2: Convert to fraction form
    554,084.45/831,126.83 = 133,360.32/x
  3. Step 3: Cross multiply
    554,084.45x = 831,126.83 × 133,360.32
  4. Step 4: Simplify right side
    554,084.45x = 110,839,339,342.58
  5. Step 5: Solve for x
    x = 110,839,339,342.58/554,084.45
  6. Step 6: Final answer
    x = 200,040.52

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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.