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Finding the Fourth Proportional to 139,382.88, 208,815.66 and 94,382.52

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Solution

The fourth proportional to 139,382.88, 208,815.66 and 94,382.52 is: 141,398.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,382.88 : 208,815.66 = 94,382.52 : x
  2. Step 2: Convert to fraction form
    139,382.88/208,815.66 = 94,382.52/x
  3. Step 3: Cross multiply
    139,382.88x = 208,815.66 × 94,382.52
  4. Step 4: Simplify right side
    139,382.88x = 19,708,548,206.26
  5. Step 5: Solve for x
    x = 19,708,548,206.26/139,382.88
  6. Step 6: Final answer
    x = 141,398.63

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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.