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Finding the Fourth Proportional to 446,787.40, 670,116.30 and 131,211.40

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Solution

The fourth proportional to 446,787.40, 670,116.30 and 131,211.40 is: 196,798.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,787.40 : 670,116.30 = 131,211.40 : x
  2. Step 2: Convert to fraction form
    446,787.40/670,116.30 = 131,211.40/x
  3. Step 3: Cross multiply
    446,787.40x = 670,116.30 × 131,211.40
  4. Step 4: Simplify right side
    446,787.40x = 87,926,897,885.82
  5. Step 5: Solve for x
    x = 87,926,897,885.82/446,787.40
  6. Step 6: Final answer
    x = 196,798.07

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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.