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Finding the Fourth Proportional to 181,994.28, 273,028.32 and 69,678.15

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Solution

The fourth proportional to 181,994.28, 273,028.32 and 69,678.15 is: 104,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,994.28 : 273,028.32 = 69,678.15 : x
  2. Step 2: Convert to fraction form
    181,994.28/273,028.32 = 69,678.15/x
  3. Step 3: Cross multiply
    181,994.28x = 273,028.32 × 69,678.15
  4. Step 4: Simplify right side
    181,994.28x = 19,024,108,235.21
  5. Step 5: Solve for x
    x = 19,024,108,235.21/181,994.28
  6. Step 6: Final answer
    x = 104,531.35

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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.