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Finding the Fourth Proportional to 74,352.75, 102,604.02 and 40,360.51

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Solution

The fourth proportional to 74,352.75, 102,604.02 and 40,360.51 is: 55,696.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,352.75 : 102,604.02 = 40,360.51 : x
  2. Step 2: Convert to fraction form
    74,352.75/102,604.02 = 40,360.51/x
  3. Step 3: Cross multiply
    74,352.75x = 102,604.02 × 40,360.51
  4. Step 4: Simplify right side
    74,352.75x = 4,141,150,552.15
  5. Step 5: Solve for x
    x = 4,141,150,552.15/74,352.75
  6. Step 6: Final answer
    x = 55,696.00

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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.