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Finding the Fourth Proportional to 223,054.72, 307,807.28 and 121,077.94

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Solution

The fourth proportional to 223,054.72, 307,807.28 and 121,077.94 is: 167,083.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,054.72 : 307,807.28 = 121,077.94 : x
  2. Step 2: Convert to fraction form
    223,054.72/307,807.28 = 121,077.94/x
  3. Step 3: Cross multiply
    223,054.72x = 307,807.28 × 121,077.94
  4. Step 4: Simplify right side
    223,054.72x = 37,268,670,912.58
  5. Step 5: Solve for x
    x = 37,268,670,912.58/223,054.72
  6. Step 6: Final answer
    x = 167,083.09

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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.