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Finding the Fourth Proportional to 105,749.75, 158,628.95 and 26,866.01

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Solution

The fourth proportional to 105,749.75, 158,628.95 and 26,866.01 is: 40,300.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,749.75 : 158,628.95 = 26,866.01 : x
  2. Step 2: Convert to fraction form
    105,749.75/158,628.95 = 26,866.01/x
  3. Step 3: Cross multiply
    105,749.75x = 158,628.95 × 26,866.01
  4. Step 4: Simplify right side
    105,749.75x = 4,261,726,956.99
  5. Step 5: Solve for x
    x = 4,261,726,956.99/105,749.75
  6. Step 6: Final answer
    x = 40,300.11

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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.