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Finding the Fourth Proportional to 368,976.75, 553,455.41 and 102,726.51

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Solution

The fourth proportional to 368,976.75, 553,455.41 and 102,726.51 is: 154,087.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,976.75 : 553,455.41 = 102,726.51 : x
  2. Step 2: Convert to fraction form
    368,976.75/553,455.41 = 102,726.51/x
  3. Step 3: Cross multiply
    368,976.75x = 553,455.41 × 102,726.51
  4. Step 4: Simplify right side
    368,976.75x = 56,854,542,196.29
  5. Step 5: Solve for x
    x = 56,854,542,196.29/368,976.75
  6. Step 6: Final answer
    x = 154,087.06

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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.