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Finding the Fourth Proportional to 159,693.53, 239,336.78 and 84,849.53

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Solution

The fourth proportional to 159,693.53, 239,336.78 and 84,849.53 is: 127,166.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,693.53 : 239,336.78 = 84,849.53 : x
  2. Step 2: Convert to fraction form
    159,693.53/239,336.78 = 84,849.53/x
  3. Step 3: Cross multiply
    159,693.53x = 239,336.78 × 84,849.53
  4. Step 4: Simplify right side
    159,693.53x = 20,307,611,673.78
  5. Step 5: Solve for x
    x = 20,307,611,673.78/159,693.53
  6. Step 6: Final answer
    x = 127,166.16

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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.