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Finding the Fourth Proportional to 446,187.96, 669,294.23 and 130,644.90

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Solution

The fourth proportional to 446,187.96, 669,294.23 and 130,644.90 is: 195,970.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,187.96 : 669,294.23 = 130,644.90 : x
  2. Step 2: Convert to fraction form
    446,187.96/669,294.23 = 130,644.90/x
  3. Step 3: Cross multiply
    446,187.96x = 669,294.23 × 130,644.90
  4. Step 4: Simplify right side
    446,187.96x = 87,439,877,095.70
  5. Step 5: Solve for x
    x = 87,439,877,095.70/446,187.96
  6. Step 6: Final answer
    x = 195,970.95

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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.