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Finding the Fourth Proportional to 554,357.21, 831,535.20 and 133,633.08

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Solution

The fourth proportional to 554,357.21, 831,535.20 and 133,633.08 is: 200,449.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,357.21 : 831,535.20 = 133,633.08 : x
  2. Step 2: Convert to fraction form
    554,357.21/831,535.20 = 133,633.08/x
  3. Step 3: Cross multiply
    554,357.21x = 831,535.20 × 133,633.08
  4. Step 4: Simplify right side
    554,357.21x = 111,120,609,904.42
  5. Step 5: Solve for x
    x = 111,120,609,904.42/554,357.21
  6. Step 6: Final answer
    x = 200,449.47

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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.