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Finding the Fourth Proportional to 130,672.89, 195,990.89 and 41,914.85

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Solution

The fourth proportional to 130,672.89, 195,990.89 and 41,914.85 is: 62,866.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,672.89 : 195,990.89 = 41,914.85 : x
  2. Step 2: Convert to fraction form
    130,672.89/195,990.89 = 41,914.85/x
  3. Step 3: Cross multiply
    130,672.89x = 195,990.89 × 41,914.85
  4. Step 4: Simplify right side
    130,672.89x = 8,214,927,566.19
  5. Step 5: Solve for x
    x = 8,214,927,566.19/130,672.89
  6. Step 6: Final answer
    x = 62,866.35

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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.