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Finding the Fourth Proportional to 418,160.26, 627,264.22 and 118,617.40

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Solution

The fourth proportional to 418,160.26, 627,264.22 and 118,617.40 is: 177,932.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,160.26 : 627,264.22 = 118,617.40 : x
  2. Step 2: Convert to fraction form
    418,160.26/627,264.22 = 118,617.40/x
  3. Step 3: Cross multiply
    418,160.26x = 627,264.22 × 118,617.40
  4. Step 4: Simplify right side
    418,160.26x = 74,404,450,889.43
  5. Step 5: Solve for x
    x = 74,404,450,889.43/418,160.26
  6. Step 6: Final answer
    x = 177,932.86

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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.