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Finding the Fourth Proportional to 266,548.66, 367,599.06 and 221,154.77

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Solution

The fourth proportional to 266,548.66, 367,599.06 and 221,154.77 is: 304,996.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,548.66 : 367,599.06 = 221,154.77 : x
  2. Step 2: Convert to fraction form
    266,548.66/367,599.06 = 221,154.77/x
  3. Step 3: Cross multiply
    266,548.66x = 367,599.06 × 221,154.77
  4. Step 4: Simplify right side
    266,548.66x = 81,296,286,485.51
  5. Step 5: Solve for x
    x = 81,296,286,485.51/266,548.66
  6. Step 6: Final answer
    x = 304,996.05

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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.