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Finding the Fourth Proportional to 100,558.60, 150,827.10 and 26,686.60

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Solution

The fourth proportional to 100,558.60, 150,827.10 and 26,686.60 is: 40,027.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,558.60 : 150,827.10 = 26,686.60 : x
  2. Step 2: Convert to fraction form
    100,558.60/150,827.10 = 26,686.60/x
  3. Step 3: Cross multiply
    100,558.60x = 150,827.10 × 26,686.60
  4. Step 4: Simplify right side
    100,558.60x = 4,025,062,486.86
  5. Step 5: Solve for x
    x = 4,025,062,486.86/100,558.60
  6. Step 6: Final answer
    x = 40,027.03

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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.