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Finding the Fourth Proportional to 169,086.39, 253,285.13 and 80,070.02

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Solution

The fourth proportional to 169,086.39, 253,285.13 and 80,070.02 is: 119,941.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,086.39 : 253,285.13 = 80,070.02 : x
  2. Step 2: Convert to fraction form
    169,086.39/253,285.13 = 80,070.02/x
  3. Step 3: Cross multiply
    169,086.39x = 253,285.13 × 80,070.02
  4. Step 4: Simplify right side
    169,086.39x = 20,280,544,857.98
  5. Step 5: Solve for x
    x = 20,280,544,857.98/169,086.39
  6. Step 6: Final answer
    x = 119,941.91

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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.