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Finding the Fourth Proportional to 104,256.54, 156,634.08 and 66,890.01

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Solution

The fourth proportional to 104,256.54, 156,634.08 and 66,890.01 is: 100,494.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,256.54 : 156,634.08 = 66,890.01 : x
  2. Step 2: Convert to fraction form
    104,256.54/156,634.08 = 66,890.01/x
  3. Step 3: Cross multiply
    104,256.54x = 156,634.08 × 66,890.01
  4. Step 4: Simplify right side
    104,256.54x = 10,477,255,177.54
  5. Step 5: Solve for x
    x = 10,477,255,177.54/104,256.54
  6. Step 6: Final answer
    x = 100,494.94

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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.