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Finding the Fourth Proportional to 74,896.40, 103,357.04 and 41,362.40

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Solution

The fourth proportional to 74,896.40, 103,357.04 and 41,362.40 is: 57,080.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,896.40 : 103,357.04 = 41,362.40 : x
  2. Step 2: Convert to fraction form
    74,896.40/103,357.04 = 41,362.40/x
  3. Step 3: Cross multiply
    74,896.40x = 103,357.04 × 41,362.40
  4. Step 4: Simplify right side
    74,896.40x = 4,275,095,231.30
  5. Step 5: Solve for x
    x = 4,275,095,231.30/74,896.40
  6. Step 6: Final answer
    x = 57,080.12

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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.