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Finding the Fourth Proportional to 79,119.94, 118,709.07 and 41,678.50

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Solution

The fourth proportional to 79,119.94, 118,709.07 and 41,678.50 is: 62,533.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,119.94 : 118,709.07 = 41,678.50 : x
  2. Step 2: Convert to fraction form
    79,119.94/118,709.07 = 41,678.50/x
  3. Step 3: Cross multiply
    79,119.94x = 118,709.07 × 41,678.50
  4. Step 4: Simplify right side
    79,119.94x = 4,947,615,974.00
  5. Step 5: Solve for x
    x = 4,947,615,974.00/79,119.94
  6. Step 6: Final answer
    x = 62,533.11

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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.