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Finding the Fourth Proportional to 302,574.72, 417,556.18 and 166,621.30

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Solution

The fourth proportional to 302,574.72, 417,556.18 and 166,621.30 is: 229,939.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,574.72 : 417,556.18 = 166,621.30 : x
  2. Step 2: Convert to fraction form
    302,574.72/417,556.18 = 166,621.30/x
  3. Step 3: Cross multiply
    302,574.72x = 417,556.18 × 166,621.30
  4. Step 4: Simplify right side
    302,574.72x = 69,573,753,534.63
  5. Step 5: Solve for x
    x = 69,573,753,534.63/302,574.72
  6. Step 6: Final answer
    x = 229,939.08

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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.