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Finding the Fourth Proportional to 168,783.17, 253,299.35 and 80,036.96

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Solution

The fourth proportional to 168,783.17, 253,299.35 and 80,036.96 is: 120,114.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,783.17 : 253,299.35 = 80,036.96 : x
  2. Step 2: Convert to fraction form
    168,783.17/253,299.35 = 80,036.96/x
  3. Step 3: Cross multiply
    168,783.17x = 253,299.35 × 80,036.96
  4. Step 4: Simplify right side
    168,783.17x = 20,273,308,277.29
  5. Step 5: Solve for x
    x = 20,273,308,277.29/168,783.17
  6. Step 6: Final answer
    x = 120,114.52

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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.