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Finding the Fourth Proportional to 92,935.80, 128,246.56 and 50,494.28

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Solution

The fourth proportional to 92,935.80, 128,246.56 and 50,494.28 is: 69,679.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,935.80 : 128,246.56 = 50,494.28 : x
  2. Step 2: Convert to fraction form
    92,935.80/128,246.56 = 50,494.28/x
  3. Step 3: Cross multiply
    92,935.80x = 128,246.56 × 50,494.28
  4. Step 4: Simplify right side
    92,935.80x = 6,475,717,709.68
  5. Step 5: Solve for x
    x = 6,475,717,709.68/92,935.80
  6. Step 6: Final answer
    x = 69,679.47

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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.