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Finding the Fourth Proportional to 92,935.92, 128,253.48 and 50,497.20

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Solution

The fourth proportional to 92,935.92, 128,253.48 and 50,497.20 is: 69,687.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,935.92 : 128,253.48 = 50,497.20 : x
  2. Step 2: Convert to fraction form
    92,935.92/128,253.48 = 50,497.20/x
  3. Step 3: Cross multiply
    92,935.92x = 128,253.48 × 50,497.20
  4. Step 4: Simplify right side
    92,935.92x = 6,476,441,630.26
  5. Step 5: Solve for x
    x = 6,476,441,630.26/92,935.92
  6. Step 6: Final answer
    x = 69,687.17

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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.