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Finding the Fourth Proportional to 159,511.44, 220,113 and 92,447.76

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Solution

The fourth proportional to 159,511.44, 220,113 and 92,447.76 is: 127,570.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,511.44 : 220,113 = 92,447.76 : x
  2. Step 2: Convert to fraction form
    159,511.44/220,113 = 92,447.76/x
  3. Step 3: Cross multiply
    159,511.44x = 220,113 × 92,447.76
  4. Step 4: Simplify right side
    159,511.44x = 20,348,953,796.88
  5. Step 5: Solve for x
    x = 20,348,953,796.88/159,511.44
  6. Step 6: Final answer
    x = 127,570.50

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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.