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Finding the Fourth Proportional to 159,661.53, 239,492.31 and 64,943.23

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Solution

The fourth proportional to 159,661.53, 239,492.31 and 64,943.23 is: 97,414.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,661.53 : 239,492.31 = 64,943.23 : x
  2. Step 2: Convert to fraction form
    159,661.53/239,492.31 = 64,943.23/x
  3. Step 3: Cross multiply
    159,661.53x = 239,492.31 × 64,943.23
  4. Step 4: Simplify right side
    159,661.53x = 15,553,403,846.85
  5. Step 5: Solve for x
    x = 15,553,403,846.85/159,661.53
  6. Step 6: Final answer
    x = 97,414.85

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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.