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Finding the Fourth Proportional to 168,784.08, 252,952.56 and 89,728.08

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Solution

The fourth proportional to 168,784.08, 252,952.56 and 89,728.08 is: 134,473.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,784.08 : 252,952.56 = 89,728.08 : x
  2. Step 2: Convert to fraction form
    168,784.08/252,952.56 = 89,728.08/x
  3. Step 3: Cross multiply
    168,784.08x = 252,952.56 × 89,728.08
  4. Step 4: Simplify right side
    168,784.08x = 22,696,947,539.88
  5. Step 5: Solve for x
    x = 22,696,947,539.88/168,784.08
  6. Step 6: Final answer
    x = 134,473.27

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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.