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Finding the Fourth Proportional to 266,936.72, 368,372.68 and 146,078.01

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Solution

The fourth proportional to 266,936.72, 368,372.68 and 146,078.01 is: 201,587.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,936.72 : 368,372.68 = 146,078.01 : x
  2. Step 2: Convert to fraction form
    266,936.72/368,372.68 = 146,078.01/x
  3. Step 3: Cross multiply
    266,936.72x = 368,372.68 × 146,078.01
  4. Step 4: Simplify right side
    266,936.72x = 53,811,148,032.77
  5. Step 5: Solve for x
    x = 53,811,148,032.77/266,936.72
  6. Step 6: Final answer
    x = 201,587.66

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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.