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Finding the Fourth Proportional to 342,990.15, 514,504.67 and 106,366.47

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Solution

The fourth proportional to 342,990.15, 514,504.67 and 106,366.47 is: 159,555.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,990.15 : 514,504.67 = 106,366.47 : x
  2. Step 2: Convert to fraction form
    342,990.15/514,504.67 = 106,366.47/x
  3. Step 3: Cross multiply
    342,990.15x = 514,504.67 × 106,366.47
  4. Step 4: Simplify right side
    342,990.15x = 54,726,045,546.41
  5. Step 5: Solve for x
    x = 54,726,045,546.41/342,990.15
  6. Step 6: Final answer
    x = 159,555.74

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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.