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Finding the Fourth Proportional to 352,773.30, 529,006.86 and 128,059.08

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Solution

The fourth proportional to 352,773.30, 529,006.86 and 128,059.08 is: 192,033.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,773.30 : 529,006.86 = 128,059.08 : x
  2. Step 2: Convert to fraction form
    352,773.30/529,006.86 = 128,059.08/x
  3. Step 3: Cross multiply
    352,773.30x = 529,006.86 × 128,059.08
  4. Step 4: Simplify right side
    352,773.30x = 67,744,131,805.29
  5. Step 5: Solve for x
    x = 67,744,131,805.29/352,773.30
  6. Step 6: Final answer
    x = 192,033.05

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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.