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Finding the Fourth Proportional to 185,405.50, 277,943.31 and 67,050.53

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Solution

The fourth proportional to 185,405.50, 277,943.31 and 67,050.53 is: 100,516.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,405.50 : 277,943.31 = 67,050.53 : x
  2. Step 2: Convert to fraction form
    185,405.50/277,943.31 = 67,050.53/x
  3. Step 3: Cross multiply
    185,405.50x = 277,943.31 × 67,050.53
  4. Step 4: Simplify right side
    185,405.50x = 18,636,245,718.22
  5. Step 5: Solve for x
    x = 18,636,245,718.22/185,405.50
  6. Step 6: Final answer
    x = 100,516.14

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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.