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Finding the Fourth Proportional to 92,172.08, 127,209.84 and 51,893.84

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Solution

The fourth proportional to 92,172.08, 127,209.84 and 51,893.84 is: 71,620.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,172.08 : 127,209.84 = 51,893.84 : x
  2. Step 2: Convert to fraction form
    92,172.08/127,209.84 = 51,893.84/x
  3. Step 3: Cross multiply
    92,172.08x = 127,209.84 × 51,893.84
  4. Step 4: Simplify right side
    92,172.08x = 6,601,407,083.39
  5. Step 5: Solve for x
    x = 6,601,407,083.39/92,172.08
  6. Step 6: Final answer
    x = 71,620.46

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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.