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Finding the Fourth Proportional to 159,453.13, 239,146.83 and 70,650

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Solution

The fourth proportional to 159,453.13, 239,146.83 and 70,650 is: 105,960.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,453.13 : 239,146.83 = 70,650 : x
  2. Step 2: Convert to fraction form
    159,453.13/239,146.83 = 70,650/x
  3. Step 3: Cross multiply
    159,453.13x = 239,146.83 × 70,650
  4. Step 4: Simplify right side
    159,453.13x = 16,895,723,539.50
  5. Step 5: Solve for x
    x = 16,895,723,539.50/159,453.13
  6. Step 6: Final answer
    x = 105,960.44

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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.