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Finding the Fourth Proportional to 207,145.78, 310,718.97 and 63,052.85

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Solution

The fourth proportional to 207,145.78, 310,718.97 and 63,052.85 is: 94,579.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,145.78 : 310,718.97 = 63,052.85 : x
  2. Step 2: Convert to fraction form
    207,145.78/310,718.97 = 63,052.85/x
  3. Step 3: Cross multiply
    207,145.78x = 310,718.97 × 63,052.85
  4. Step 4: Simplify right side
    207,145.78x = 19,591,717,384.36
  5. Step 5: Solve for x
    x = 19,591,717,384.36/207,145.78
  6. Step 6: Final answer
    x = 94,579.37

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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.