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Finding the Fourth Proportional to 104,989.63, 157,485.04 and 26,103.86

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Solution

The fourth proportional to 104,989.63, 157,485.04 and 26,103.86 is: 39,155.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,989.63 : 157,485.04 = 26,103.86 : x
  2. Step 2: Convert to fraction form
    104,989.63/157,485.04 = 26,103.86/x
  3. Step 3: Cross multiply
    104,989.63x = 157,485.04 × 26,103.86
  4. Step 4: Simplify right side
    104,989.63x = 4,110,967,764.71
  5. Step 5: Solve for x
    x = 4,110,967,764.71/104,989.63
  6. Step 6: Final answer
    x = 39,155.94

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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.