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Finding the Fourth Proportional to 418,077.52, 627,157.80 and 133,696.62

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Solution

The fourth proportional to 418,077.52, 627,157.80 and 133,696.62 is: 200,558.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,077.52 : 627,157.80 = 133,696.62 : x
  2. Step 2: Convert to fraction form
    418,077.52/627,157.80 = 133,696.62/x
  3. Step 3: Cross multiply
    418,077.52x = 627,157.80 × 133,696.62
  4. Step 4: Simplify right side
    418,077.52x = 83,848,878,066.64
  5. Step 5: Solve for x
    x = 83,848,878,066.64/418,077.52
  6. Step 6: Final answer
    x = 200,558.21

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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.