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Finding the Fourth Proportional to 554,068.50, 831,102.90 and 133,344.38

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Solution

The fourth proportional to 554,068.50, 831,102.90 and 133,344.38 is: 200,016.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,068.50 : 831,102.90 = 133,344.38 : x
  2. Step 2: Convert to fraction form
    554,068.50/831,102.90 = 133,344.38/x
  3. Step 3: Cross multiply
    554,068.50x = 831,102.90 × 133,344.38
  4. Step 4: Simplify right side
    554,068.50x = 110,822,898,944.56
  5. Step 5: Solve for x
    x = 110,822,898,944.56/554,068.50
  6. Step 6: Final answer
    x = 200,016.60

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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.