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Finding the Fourth Proportional to 554,081.45, 831,122.33 and 133,357.32

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Solution

The fourth proportional to 554,081.45, 831,122.33 and 133,357.32 is: 200,036.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,081.45 : 831,122.33 = 133,357.32 : x
  2. Step 2: Convert to fraction form
    554,081.45/831,122.33 = 133,357.32/x
  3. Step 3: Cross multiply
    554,081.45x = 831,122.33 × 133,357.32
  4. Step 4: Simplify right side
    554,081.45x = 110,836,245,854.17
  5. Step 5: Solve for x
    x = 110,836,245,854.17/554,081.45
  6. Step 6: Final answer
    x = 200,036.02

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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.