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Finding the Fourth Proportional to 159,636.61, 239,392.54 and 69,706.75

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Solution

The fourth proportional to 159,636.61, 239,392.54 and 69,706.75 is: 104,532.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,636.61 : 239,392.54 = 69,706.75 : x
  2. Step 2: Convert to fraction form
    159,636.61/239,392.54 = 69,706.75/x
  3. Step 3: Cross multiply
    159,636.61x = 239,392.54 × 69,706.75
  4. Step 4: Simplify right side
    159,636.61x = 16,687,275,937.65
  5. Step 5: Solve for x
    x = 16,687,275,937.65/159,636.61
  6. Step 6: Final answer
    x = 104,532.89

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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.