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Finding the Fourth Proportional to 71,195.49, 106,740.51 and 43,108.93

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Solution

The fourth proportional to 71,195.49, 106,740.51 and 43,108.93 is: 64,631.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,195.49 : 106,740.51 = 43,108.93 : x
  2. Step 2: Convert to fraction form
    71,195.49/106,740.51 = 43,108.93/x
  3. Step 3: Cross multiply
    71,195.49x = 106,740.51 × 43,108.93
  4. Step 4: Simplify right side
    71,195.49x = 4,601,469,173.75
  5. Step 5: Solve for x
    x = 4,601,469,173.75/71,195.49
  6. Step 6: Final answer
    x = 64,631.47

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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.