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Finding the Fourth Proportional to 92,993.30, 128,331.58 and 50,551.90

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Solution

The fourth proportional to 92,993.30, 128,331.58 and 50,551.90 is: 69,762.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,993.30 : 128,331.58 = 50,551.90 : x
  2. Step 2: Convert to fraction form
    92,993.30/128,331.58 = 50,551.90/x
  3. Step 3: Cross multiply
    92,993.30x = 128,331.58 × 50,551.90
  4. Step 4: Simplify right side
    92,993.30x = 6,487,405,199.00
  5. Step 5: Solve for x
    x = 6,487,405,199.00/92,993.30
  6. Step 6: Final answer
    x = 69,762.07

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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.