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Finding the Fourth Proportional to 73,181.50, 100,989.14 and 41,349.71

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Solution

The fourth proportional to 73,181.50, 100,989.14 and 41,349.71 is: 57,061.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,181.50 : 100,989.14 = 41,349.71 : x
  2. Step 2: Convert to fraction form
    73,181.50/100,989.14 = 41,349.71/x
  3. Step 3: Cross multiply
    73,181.50x = 100,989.14 × 41,349.71
  4. Step 4: Simplify right side
    73,181.50x = 4,175,872,008.00
  5. Step 5: Solve for x
    x = 4,175,872,008.00/73,181.50
  6. Step 6: Final answer
    x = 57,061.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.