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Finding the Fourth Proportional to 371,956.84, 513,303.42 and 202,190.56

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Solution

The fourth proportional to 371,956.84, 513,303.42 and 202,190.56 is: 279,024.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,956.84 : 513,303.42 = 202,190.56 : x
  2. Step 2: Convert to fraction form
    371,956.84/513,303.42 = 202,190.56/x
  3. Step 3: Cross multiply
    371,956.84x = 513,303.42 × 202,190.56
  4. Step 4: Simplify right side
    371,956.84x = 103,785,105,939.72
  5. Step 5: Solve for x
    x = 103,785,105,939.72/371,956.84
  6. Step 6: Final answer
    x = 279,024.59

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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.