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Finding the Fourth Proportional to 92,850.64, 128,133.18 and 50,408.32

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Solution

The fourth proportional to 92,850.64, 128,133.18 and 50,408.32 is: 69,563.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,850.64 : 128,133.18 = 50,408.32 : x
  2. Step 2: Convert to fraction form
    92,850.64/128,133.18 = 50,408.32/x
  3. Step 3: Cross multiply
    92,850.64x = 128,133.18 × 50,408.32
  4. Step 4: Simplify right side
    92,850.64x = 6,458,978,340.06
  5. Step 5: Solve for x
    x = 6,458,978,340.06/92,850.64
  6. Step 6: Final answer
    x = 69,563.10

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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.