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Finding the Fourth Proportional to 235,111.95, 352,514.57 and 85,323.87

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Solution

The fourth proportional to 235,111.95, 352,514.57 and 85,323.87 is: 127,930.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,111.95 : 352,514.57 = 85,323.87 : x
  2. Step 2: Convert to fraction form
    235,111.95/352,514.57 = 85,323.87/x
  3. Step 3: Cross multiply
    235,111.95x = 352,514.57 × 85,323.87
  4. Step 4: Simplify right side
    235,111.95x = 30,077,906,917.17
  5. Step 5: Solve for x
    x = 30,077,906,917.17/235,111.95
  6. Step 6: Final answer
    x = 127,930.15

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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.