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Finding the Fourth Proportional to 74,340.33, 102,674.84 and 48,960.20

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Solution

The fourth proportional to 74,340.33, 102,674.84 and 48,960.20 is: 67,621.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,340.33 : 102,674.84 = 48,960.20 : x
  2. Step 2: Convert to fraction form
    74,340.33/102,674.84 = 48,960.20/x
  3. Step 3: Cross multiply
    74,340.33x = 102,674.84 × 48,960.20
  4. Step 4: Simplify right side
    74,340.33x = 5,026,979,943.19
  5. Step 5: Solve for x
    x = 5,026,979,943.19/74,340.33
  6. Step 6: Final answer
    x = 67,621.17

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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.