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Finding the Fourth Proportional to 302,679.22, 417,700.12 and 166,717.98

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Solution

The fourth proportional to 302,679.22, 417,700.12 and 166,717.98 is: 230,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,679.22 : 417,700.12 = 166,717.98 : x
  2. Step 2: Convert to fraction form
    302,679.22/417,700.12 = 166,717.98/x
  3. Step 3: Cross multiply
    302,679.22x = 417,700.12 × 166,717.98
  4. Step 4: Simplify right side
    302,679.22x = 69,638,120,252.16
  5. Step 5: Solve for x
    x = 69,638,120,252.16/302,679.22
  6. Step 6: Final answer
    x = 230,072.35

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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.