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Finding the Fourth Proportional to 129,997.30, 195,024.30 and 73,864.30

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Solution

The fourth proportional to 129,997.30, 195,024.30 and 73,864.30 is: 110,812.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,997.30 : 195,024.30 = 73,864.30 : x
  2. Step 2: Convert to fraction form
    129,997.30/195,024.30 = 73,864.30/x
  3. Step 3: Cross multiply
    129,997.30x = 195,024.30 × 73,864.30
  4. Step 4: Simplify right side
    129,997.30x = 14,405,333,402.49
  5. Step 5: Solve for x
    x = 14,405,333,402.49/129,997.30
  6. Step 6: Final answer
    x = 110,812.56

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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.