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Finding the Fourth Proportional to 139,240.98, 208,682.73 and 63,284.04

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Solution

The fourth proportional to 139,240.98, 208,682.73 and 63,284.04 is: 94,844.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,240.98 : 208,682.73 = 63,284.04 : x
  2. Step 2: Convert to fraction form
    139,240.98/208,682.73 = 63,284.04/x
  3. Step 3: Cross multiply
    139,240.98x = 208,682.73 × 63,284.04
  4. Step 4: Simplify right side
    139,240.98x = 13,206,286,232.63
  5. Step 5: Solve for x
    x = 13,206,286,232.63/139,240.98
  6. Step 6: Final answer
    x = 94,844.82

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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.