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Finding the Fourth Proportional to 124,336.49, 186,371.94 and 70,913.44

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Solution

The fourth proportional to 124,336.49, 186,371.94 and 70,913.44 is: 106,294.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,336.49 : 186,371.94 = 70,913.44 : x
  2. Step 2: Convert to fraction form
    124,336.49/186,371.94 = 70,913.44/x
  3. Step 3: Cross multiply
    124,336.49x = 186,371.94 × 70,913.44
  4. Step 4: Simplify right side
    124,336.49x = 13,216,274,698.62
  5. Step 5: Solve for x
    x = 13,216,274,698.62/124,336.49
  6. Step 6: Final answer
    x = 106,294.41

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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.