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Finding the Fourth Proportional to 73,451.66, 110,006.60 and 71,431.34

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Solution

The fourth proportional to 73,451.66, 110,006.60 and 71,431.34 is: 106,980.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,451.66 : 110,006.60 = 71,431.34 : x
  2. Step 2: Convert to fraction form
    73,451.66/110,006.60 = 71,431.34/x
  3. Step 3: Cross multiply
    73,451.66x = 110,006.60 × 71,431.34
  4. Step 4: Simplify right side
    73,451.66x = 7,857,918,846.84
  5. Step 5: Solve for x
    x = 7,857,918,846.84/73,451.66
  6. Step 6: Final answer
    x = 106,980.82

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1.5x scale

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.