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Finding the Fourth Proportional to 368,107.68, 552,145.46 and 115,382.40

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Solution

The fourth proportional to 368,107.68, 552,145.46 and 115,382.40 is: 173,068.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,107.68 : 552,145.46 = 115,382.40 : x
  2. Step 2: Convert to fraction form
    368,107.68/552,145.46 = 115,382.40/x
  3. Step 3: Cross multiply
    368,107.68x = 552,145.46 × 115,382.40
  4. Step 4: Simplify right side
    368,107.68x = 63,707,867,746.99
  5. Step 5: Solve for x
    x = 63,707,867,746.99/368,107.68
  6. Step 6: Final answer
    x = 173,068.56

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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.