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Finding the Fourth Proportional to 92,903.61, 128,207.16 and 50,462.04

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Solution

The fourth proportional to 92,903.61, 128,207.16 and 50,462.04 is: 69,637.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,903.61 : 128,207.16 = 50,462.04 : x
  2. Step 2: Convert to fraction form
    92,903.61/128,207.16 = 50,462.04/x
  3. Step 3: Cross multiply
    92,903.61x = 128,207.16 × 50,462.04
  4. Step 4: Simplify right side
    92,903.61x = 6,469,594,836.21
  5. Step 5: Solve for x
    x = 6,469,594,836.21/92,903.61
  6. Step 6: Final answer
    x = 69,637.71

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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.