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Finding the Fourth Proportional to 554,538.52, 831,807.86 and 133,814.40

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Solution

The fourth proportional to 554,538.52, 831,807.86 and 133,814.40 is: 200,721.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,538.52 : 831,807.86 = 133,814.40 : x
  2. Step 2: Convert to fraction form
    554,538.52/831,807.86 = 133,814.40/x
  3. Step 3: Cross multiply
    554,538.52x = 831,807.86 × 133,814.40
  4. Step 4: Simplify right side
    554,538.52x = 111,307,865,912.83
  5. Step 5: Solve for x
    x = 111,307,865,912.83/554,538.52
  6. Step 6: Final answer
    x = 200,721.61

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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.