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Finding the Fourth Proportional to 243,436.49, 335,875.64 and 166,974.51

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Solution

The fourth proportional to 243,436.49, 335,875.64 and 166,974.51 is: 230,379.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,436.49 : 335,875.64 = 166,974.51 : x
  2. Step 2: Convert to fraction form
    243,436.49/335,875.64 = 166,974.51/x
  3. Step 3: Cross multiply
    243,436.49x = 335,875.64 × 166,974.51
  4. Step 4: Simplify right side
    243,436.49x = 56,082,669,575.06
  5. Step 5: Solve for x
    x = 56,082,669,575.06/243,436.49
  6. Step 6: Final answer
    x = 230,379.06

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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.