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Finding the Fourth Proportional to 104,989.53, 157,484.90 and 26,103.75

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Solution

The fourth proportional to 104,989.53, 157,484.90 and 26,103.75 is: 39,155.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,989.53 : 157,484.90 = 26,103.75 : x
  2. Step 2: Convert to fraction form
    104,989.53/157,484.90 = 26,103.75/x
  3. Step 3: Cross multiply
    104,989.53x = 157,484.90 × 26,103.75
  4. Step 4: Simplify right side
    104,989.53x = 4,110,946,966.66
  5. Step 5: Solve for x
    x = 4,110,946,966.66/104,989.53
  6. Step 6: Final answer
    x = 39,155.78

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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.