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Finding the Fourth Proportional to 207,076.52, 285,060.39 and 153,260.12

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Solution

The fourth proportional to 207,076.52, 285,060.39 and 153,260.12 is: 210,977.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,076.52 : 285,060.39 = 153,260.12 : x
  2. Step 2: Convert to fraction form
    207,076.52/285,060.39 = 153,260.12/x
  3. Step 3: Cross multiply
    207,076.52x = 285,060.39 × 153,260.12
  4. Step 4: Simplify right side
    207,076.52x = 43,688,389,578.65
  5. Step 5: Solve for x
    x = 43,688,389,578.65/207,076.52
  6. Step 6: Final answer
    x = 210,977.03

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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.