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Finding the Fourth Proportional to 235,451.66, 352,963.89 and 85,586.10

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Solution

The fourth proportional to 235,451.66, 352,963.89 and 85,586.10 is: 128,301.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,451.66 : 352,963.89 = 85,586.10 : x
  2. Step 2: Convert to fraction form
    235,451.66/352,963.89 = 85,586.10/x
  3. Step 3: Cross multiply
    235,451.66x = 352,963.89 × 85,586.10
  4. Step 4: Simplify right side
    235,451.66x = 30,208,804,109.54
  5. Step 5: Solve for x
    x = 30,208,804,109.54/235,451.66
  6. Step 6: Final answer
    x = 128,301.51

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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.