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Finding the Fourth Proportional to 159,967.43, 239,994.98 and 69,993.83

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Solution

The fourth proportional to 159,967.43, 239,994.98 and 69,993.83 is: 105,009.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,967.43 : 239,994.98 = 69,993.83 : x
  2. Step 2: Convert to fraction form
    159,967.43/239,994.98 = 69,993.83/x
  3. Step 3: Cross multiply
    159,967.43x = 239,994.98 × 69,993.83
  4. Step 4: Simplify right side
    159,967.43x = 16,798,168,605.95
  5. Step 5: Solve for x
    x = 16,798,168,605.95/159,967.43
  6. Step 6: Final answer
    x = 105,009.93

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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.