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Finding the Fourth Proportional to 104,265.54, 156,647.58 and 66,899.02

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Solution

The fourth proportional to 104,265.54, 156,647.58 and 66,899.02 is: 100,508.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,265.54 : 156,647.58 = 66,899.02 : x
  2. Step 2: Convert to fraction form
    104,265.54/156,647.58 = 66,899.02/x
  3. Step 3: Cross multiply
    104,265.54x = 156,647.58 × 66,899.02
  4. Step 4: Simplify right side
    104,265.54x = 10,479,569,587.37
  5. Step 5: Solve for x
    x = 10,479,569,587.37/104,265.54
  6. Step 6: Final answer
    x = 100,508.47

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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.