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Finding the Fourth Proportional to 371,324.76, 557,016.57 and 105,086.94

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Solution

The fourth proportional to 371,324.76, 557,016.57 and 105,086.94 is: 157,638.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,324.76 : 557,016.57 = 105,086.94 : x
  2. Step 2: Convert to fraction form
    371,324.76/557,016.57 = 105,086.94/x
  3. Step 3: Cross multiply
    371,324.76x = 557,016.57 × 105,086.94
  4. Step 4: Simplify right side
    371,324.76x = 58,535,166,870.60
  5. Step 5: Solve for x
    x = 58,535,166,870.60/371,324.76
  6. Step 6: Final answer
    x = 157,638.74

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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.