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Finding the Fourth Proportional to 74,769.06, 103,179.78 and 41,235.06

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Solution

The fourth proportional to 74,769.06, 103,179.78 and 41,235.06 is: 56,903.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,769.06 : 103,179.78 = 41,235.06 : x
  2. Step 2: Convert to fraction form
    74,769.06/103,179.78 = 41,235.06/x
  3. Step 3: Cross multiply
    74,769.06x = 103,179.78 × 41,235.06
  4. Step 4: Simplify right side
    74,769.06x = 4,254,624,419.09
  5. Step 5: Solve for x
    x = 4,254,624,419.09/74,769.06
  6. Step 6: Final answer
    x = 56,903.54

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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.