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Finding the Fourth Proportional to 207,053.70, 310,908.60 and 151,285.20

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Solution

The fourth proportional to 207,053.70, 310,908.60 and 151,285.20 is: 227,167.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,053.70 : 310,908.60 = 151,285.20 : x
  2. Step 2: Convert to fraction form
    207,053.70/310,908.60 = 151,285.20/x
  3. Step 3: Cross multiply
    207,053.70x = 310,908.60 × 151,285.20
  4. Step 4: Simplify right side
    207,053.70x = 47,035,869,732.72
  5. Step 5: Solve for x
    x = 47,035,869,732.72/207,053.70
  6. Step 6: Final answer
    x = 227,167.49

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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.