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Finding the Fourth Proportional to 67,051.40, 100,577.10 and 66,014.60

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Solution

The fourth proportional to 67,051.40, 100,577.10 and 66,014.60 is: 99,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,051.40 : 100,577.10 = 66,014.60 : x
  2. Step 2: Convert to fraction form
    67,051.40/100,577.10 = 66,014.60/x
  3. Step 3: Cross multiply
    67,051.40x = 100,577.10 × 66,014.60
  4. Step 4: Simplify right side
    67,051.40x = 6,639,557,025.66
  5. Step 5: Solve for x
    x = 6,639,557,025.66/67,051.40
  6. Step 6: Final answer
    x = 99,021.90

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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.