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Finding the Fourth Proportional to 212,785.43, 319,224.84 and 63,037.44

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Solution

The fourth proportional to 212,785.43, 319,224.84 and 63,037.44 is: 94,570.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,785.43 : 319,224.84 = 63,037.44 : x
  2. Step 2: Convert to fraction form
    212,785.43/319,224.84 = 63,037.44/x
  3. Step 3: Cross multiply
    212,785.43x = 319,224.84 × 63,037.44
  4. Step 4: Simplify right side
    212,785.43x = 20,123,116,698.01
  5. Step 5: Solve for x
    x = 20,123,116,698.01/212,785.43
  6. Step 6: Final answer
    x = 94,570.00

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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.