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Finding the Fourth Proportional to 223,041.82, 307,798.01 and 121,067.31

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Solution

The fourth proportional to 223,041.82, 307,798.01 and 121,067.31 is: 167,073.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,041.82 : 307,798.01 = 121,067.31 : x
  2. Step 2: Convert to fraction form
    223,041.82/307,798.01 = 121,067.31/x
  3. Step 3: Cross multiply
    223,041.82x = 307,798.01 × 121,067.31
  4. Step 4: Simplify right side
    223,041.82x = 37,264,277,094.05
  5. Step 5: Solve for x
    x = 37,264,277,094.05/223,041.82
  6. Step 6: Final answer
    x = 167,073.05

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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.