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Finding the Fourth Proportional to 159,739.78, 239,519.74 and 53,066.62

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Solution

The fourth proportional to 159,739.78, 239,519.74 and 53,066.62 is: 79,570.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,739.78 : 239,519.74 = 53,066.62 : x
  2. Step 2: Convert to fraction form
    159,739.78/239,519.74 = 53,066.62/x
  3. Step 3: Cross multiply
    159,739.78x = 239,519.74 × 53,066.62
  4. Step 4: Simplify right side
    159,739.78x = 12,710,503,025.08
  5. Step 5: Solve for x
    x = 12,710,503,025.08/159,739.78
  6. Step 6: Final answer
    x = 79,570.05

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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.