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Finding the Fourth Proportional to 235,393.76, 352,979.52 and 85,528.32

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Solution

The fourth proportional to 235,393.76, 352,979.52 and 85,528.32 is: 128,252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,393.76 : 352,979.52 = 85,528.32 : x
  2. Step 2: Convert to fraction form
    235,393.76/352,979.52 = 85,528.32/x
  3. Step 3: Cross multiply
    235,393.76x = 352,979.52 × 85,528.32
  4. Step 4: Simplify right side
    235,393.76x = 30,189,745,340.01
  5. Step 5: Solve for x
    x = 30,189,745,340.01/235,393.76
  6. Step 6: Final answer
    x = 128,252.11

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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.