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Finding the Fourth Proportional to 608,930.76, 913,399.92 and 159,647.58

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Solution

The fourth proportional to 608,930.76, 913,399.92 and 159,647.58 is: 239,472.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,930.76 : 913,399.92 = 159,647.58 : x
  2. Step 2: Convert to fraction form
    608,930.76/913,399.92 = 159,647.58/x
  3. Step 3: Cross multiply
    608,930.76x = 913,399.92 × 159,647.58
  4. Step 4: Simplify right side
    608,930.76x = 145,822,086,800.19
  5. Step 5: Solve for x
    x = 145,822,086,800.19/608,930.76
  6. Step 6: Final answer
    x = 239,472.36

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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.