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Finding the Fourth Proportional to 235,310.22, 352,871.91 and 85,468.77

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Solution

The fourth proportional to 235,310.22, 352,871.91 and 85,468.77 is: 128,169.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,310.22 : 352,871.91 = 85,468.77 : x
  2. Step 2: Convert to fraction form
    235,310.22/352,871.91 = 85,468.77/x
  3. Step 3: Cross multiply
    235,310.22x = 352,871.91 × 85,468.77
  4. Step 4: Simplify right side
    235,310.22x = 30,159,528,115.25
  5. Step 5: Solve for x
    x = 30,159,528,115.25/235,310.22
  6. Step 6: Final answer
    x = 128,169.22

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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.