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Finding the Fourth Proportional to 93,134, 128,525.16 and 50,692.88

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Solution

The fourth proportional to 93,134, 128,525.16 and 50,692.88 is: 69,956.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,134 : 128,525.16 = 50,692.88 : x
  2. Step 2: Convert to fraction form
    93,134/128,525.16 = 50,692.88/x
  3. Step 3: Cross multiply
    93,134x = 128,525.16 × 50,692.88
  4. Step 4: Simplify right side
    93,134x = 6,515,310,512.86
  5. Step 5: Solve for x
    x = 6,515,310,512.86/93,134
  6. Step 6: Final answer
    x = 69,956.31

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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.