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Finding the Fourth Proportional to 235,069.92, 352,522.20 and 85,284.72

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Solution

The fourth proportional to 235,069.92, 352,522.20 and 85,284.72 is: 127,897.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,069.92 : 352,522.20 = 85,284.72 : x
  2. Step 2: Convert to fraction form
    235,069.92/352,522.20 = 85,284.72/x
  3. Step 3: Cross multiply
    235,069.92x = 352,522.20 × 85,284.72
  4. Step 4: Simplify right side
    235,069.92x = 30,064,757,120.78
  5. Step 5: Solve for x
    x = 30,064,757,120.78/235,069.92
  6. Step 6: Final answer
    x = 127,897.08

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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.