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Finding the Fourth Proportional to 418,148.35, 627,268.11 and 133,772.06

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Solution

The fourth proportional to 418,148.35, 627,268.11 and 133,772.06 is: 200,672.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,148.35 : 627,268.11 = 133,772.06 : x
  2. Step 2: Convert to fraction form
    418,148.35/627,268.11 = 133,772.06/x
  3. Step 3: Cross multiply
    418,148.35x = 627,268.11 × 133,772.06
  4. Step 4: Simplify right side
    418,148.35x = 83,910,947,247.01
  5. Step 5: Solve for x
    x = 83,910,947,247.01/418,148.35
  6. Step 6: Final answer
    x = 200,672.67

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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.