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Finding the Fourth Proportional to 92,647.60, 127,854.12 and 50,206.20

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Solution

The fourth proportional to 92,647.60, 127,854.12 and 50,206.20 is: 69,284.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,647.60 : 127,854.12 = 50,206.20 : x
  2. Step 2: Convert to fraction form
    92,647.60/127,854.12 = 50,206.20/x
  3. Step 3: Cross multiply
    92,647.60x = 127,854.12 × 50,206.20
  4. Step 4: Simplify right side
    92,647.60x = 6,419,069,519.54
  5. Step 5: Solve for x
    x = 6,419,069,519.54/92,647.60
  6. Step 6: Final answer
    x = 69,284.79

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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.