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Finding the Fourth Proportional to 554,081.95, 831,123.08 and 133,357.82

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Solution

The fourth proportional to 554,081.95, 831,123.08 and 133,357.82 is: 200,036.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,081.95 : 831,123.08 = 133,357.82 : x
  2. Step 2: Convert to fraction form
    554,081.95/831,123.08 = 133,357.82/x
  3. Step 3: Cross multiply
    554,081.95x = 831,123.08 × 133,357.82
  4. Step 4: Simplify right side
    554,081.95x = 110,836,761,433.70
  5. Step 5: Solve for x
    x = 110,836,761,433.70/554,081.95
  6. Step 6: Final answer
    x = 200,036.77

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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.