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Finding the Fourth Proportional to 92,889.82, 128,187.39 and 50,447.98

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Solution

The fourth proportional to 92,889.82, 128,187.39 and 50,447.98 is: 69,617.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,889.82 : 128,187.39 = 50,447.98 : x
  2. Step 2: Convert to fraction form
    92,889.82/128,187.39 = 50,447.98/x
  3. Step 3: Cross multiply
    92,889.82x = 128,187.39 × 50,447.98
  4. Step 4: Simplify right side
    92,889.82x = 6,466,794,886.97
  5. Step 5: Solve for x
    x = 6,466,794,886.97/92,889.82
  6. Step 6: Final answer
    x = 69,617.91

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1.5x scale

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.