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Finding the Fourth Proportional to 92,993.40, 128,327.32 and 50,551.93

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Solution

The fourth proportional to 92,993.40, 128,327.32 and 50,551.93 is: 69,759.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,993.40 : 128,327.32 = 50,551.93 : x
  2. Step 2: Convert to fraction form
    92,993.40/128,327.32 = 50,551.93/x
  3. Step 3: Cross multiply
    92,993.40x = 128,327.32 × 50,551.93
  4. Step 4: Simplify right side
    92,993.40x = 6,487,193,921.33
  5. Step 5: Solve for x
    x = 6,487,193,921.33/92,993.40
  6. Step 6: Final answer
    x = 69,759.72

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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.