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Finding the Fourth Proportional to 371,246.70, 557,015.85 and 146,568.90

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Solution

The fourth proportional to 371,246.70, 557,015.85 and 146,568.90 is: 219,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,246.70 : 557,015.85 = 146,568.90 : x
  2. Step 2: Convert to fraction form
    371,246.70/557,015.85 = 146,568.90/x
  3. Step 3: Cross multiply
    371,246.70x = 557,015.85 × 146,568.90
  4. Step 4: Simplify right side
    371,246.70x = 81,641,200,417.07
  5. Step 5: Solve for x
    x = 81,641,200,417.07/371,246.70
  6. Step 6: Final answer
    x = 219,910.91

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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.