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Finding the Fourth Proportional to 275,006.94, 412,507.08 and 75,327.18

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Solution

The fourth proportional to 275,006.94, 412,507.08 and 75,327.18 is: 112,989.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,006.94 : 412,507.08 = 75,327.18 : x
  2. Step 2: Convert to fraction form
    275,006.94/412,507.08 = 75,327.18/x
  3. Step 3: Cross multiply
    275,006.94x = 412,507.08 × 75,327.18
  4. Step 4: Simplify right side
    275,006.94x = 31,072,995,066.43
  5. Step 5: Solve for x
    x = 31,072,995,066.43/275,006.94
  6. Step 6: Final answer
    x = 112,989.86

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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.