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Finding the Fourth Proportional to 207,133.62, 310,484.97 and 140,579.16

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Solution

The fourth proportional to 207,133.62, 310,484.97 and 140,579.16 is: 210,722.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,133.62 : 310,484.97 = 140,579.16 : x
  2. Step 2: Convert to fraction form
    207,133.62/310,484.97 = 140,579.16/x
  3. Step 3: Cross multiply
    207,133.62x = 310,484.97 × 140,579.16
  4. Step 4: Simplify right side
    207,133.62x = 43,647,716,275.23
  5. Step 5: Solve for x
    x = 43,647,716,275.23/207,133.62
  6. Step 6: Final answer
    x = 210,722.51

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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.