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Finding the Fourth Proportional to 159,406.76, 239,141.66 and 45,555.59

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Solution

The fourth proportional to 159,406.76, 239,141.66 and 45,555.59 is: 68,342.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,406.76 : 239,141.66 = 45,555.59 : x
  2. Step 2: Convert to fraction form
    159,406.76/239,141.66 = 45,555.59/x
  3. Step 3: Cross multiply
    159,406.76x = 239,141.66 × 45,555.59
  4. Step 4: Simplify right side
    159,406.76x = 10,894,238,219.17
  5. Step 5: Solve for x
    x = 10,894,238,219.17/159,406.76
  6. Step 6: Final answer
    x = 68,342.39

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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.