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Finding the Fourth Proportional to 159,709.86, 220,410.54 and 92,641.86

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Solution

The fourth proportional to 159,709.86, 220,410.54 and 92,641.86 is: 127,852.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,709.86 : 220,410.54 = 92,641.86 : x
  2. Step 2: Convert to fraction form
    159,709.86/220,410.54 = 92,641.86/x
  3. Step 3: Cross multiply
    159,709.86x = 220,410.54 × 92,641.86
  4. Step 4: Simplify right side
    159,709.86x = 20,419,242,389.20
  5. Step 5: Solve for x
    x = 20,419,242,389.20/159,709.86
  6. Step 6: Final answer
    x = 127,852.11

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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.