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Finding the Fourth Proportional to 169,088.38, 253,288.12 and 80,072.02

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Solution

The fourth proportional to 169,088.38, 253,288.12 and 80,072.02 is: 119,944.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,088.38 : 253,288.12 = 80,072.02 : x
  2. Step 2: Convert to fraction form
    169,088.38/253,288.12 = 80,072.02/x
  3. Step 3: Cross multiply
    169,088.38x = 253,288.12 × 80,072.02
  4. Step 4: Simplify right side
    169,088.38x = 20,281,291,410.40
  5. Step 5: Solve for x
    x = 20,281,291,410.40/169,088.38
  6. Step 6: Final answer
    x = 119,944.92

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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.