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Finding the Fourth Proportional to 159,845.66, 239,813.45 and 69,896.28

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Solution

The fourth proportional to 159,845.66, 239,813.45 and 69,896.28 is: 104,864.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,845.66 : 239,813.45 = 69,896.28 : x
  2. Step 2: Convert to fraction form
    159,845.66/239,813.45 = 69,896.28/x
  3. Step 3: Cross multiply
    159,845.66x = 239,813.45 × 69,896.28
  4. Step 4: Simplify right side
    159,845.66x = 16,762,068,048.97
  5. Step 5: Solve for x
    x = 16,762,068,048.97/159,845.66
  6. Step 6: Final answer
    x = 104,864.08

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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.