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Finding the Fourth Proportional to 92,647.80, 127,769.40 and 67,327.20

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Solution

The fourth proportional to 92,647.80, 127,769.40 and 67,327.20 is: 92,850.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,647.80 : 127,769.40 = 67,327.20 : x
  2. Step 2: Convert to fraction form
    92,647.80/127,769.40 = 67,327.20/x
  3. Step 3: Cross multiply
    92,647.80x = 127,769.40 × 67,327.20
  4. Step 4: Simplify right side
    92,647.80x = 8,602,355,947.68
  5. Step 5: Solve for x
    x = 8,602,355,947.68/92,647.80
  6. Step 6: Final answer
    x = 92,850.08

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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.