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Finding the Fourth Proportional to 100,025.06, 150,116.46 and 43,903.91

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Solution

The fourth proportional to 100,025.06, 150,116.46 and 43,903.91 is: 65,890.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,025.06 : 150,116.46 = 43,903.91 : x
  2. Step 2: Convert to fraction form
    100,025.06/150,116.46 = 43,903.91/x
  3. Step 3: Cross multiply
    100,025.06x = 150,116.46 × 43,903.91
  4. Step 4: Simplify right side
    100,025.06x = 6,590,698,798.78
  5. Step 5: Solve for x
    x = 6,590,698,798.78/100,025.06
  6. Step 6: Final answer
    x = 65,890.48

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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.