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Finding the Fourth Proportional to 159,956.69, 239,986.86 and 47,637.84

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Solution

The fourth proportional to 159,956.69, 239,986.86 and 47,637.84 is: 71,472.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,956.69 : 239,986.86 = 47,637.84 : x
  2. Step 2: Convert to fraction form
    159,956.69/239,986.86 = 47,637.84/x
  3. Step 3: Cross multiply
    159,956.69x = 239,986.86 × 47,637.84
  4. Step 4: Simplify right side
    159,956.69x = 11,432,455,638.78
  5. Step 5: Solve for x
    x = 11,432,455,638.78/159,956.69
  6. Step 6: Final answer
    x = 71,472.19

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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.