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Finding the Fourth Proportional to 100,928.29, 151,410.27 and 41,730.79

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Solution

The fourth proportional to 100,928.29, 151,410.27 and 41,730.79 is: 62,603.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,928.29 : 151,410.27 = 41,730.79 : x
  2. Step 2: Convert to fraction form
    100,928.29/151,410.27 = 41,730.79/x
  3. Step 3: Cross multiply
    100,928.29x = 151,410.27 × 41,730.79
  4. Step 4: Simplify right side
    100,928.29x = 6,318,470,181.21
  5. Step 5: Solve for x
    x = 6,318,470,181.21/100,928.29
  6. Step 6: Final answer
    x = 62,603.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.