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Finding the Fourth Proportional to 235,077.17, 352,640.35 and 77,317.92

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Solution

The fourth proportional to 235,077.17, 352,640.35 and 77,317.92 is: 115,984.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,077.17 : 352,640.35 = 77,317.92 : x
  2. Step 2: Convert to fraction form
    235,077.17/352,640.35 = 77,317.92/x
  3. Step 3: Cross multiply
    235,077.17x = 352,640.35 × 77,317.92
  4. Step 4: Simplify right side
    235,077.17x = 27,265,418,466.72
  5. Step 5: Solve for x
    x = 27,265,418,466.72/235,077.17
  6. Step 6: Final answer
    x = 115,984.97

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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.