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Finding the Fourth Proportional to 266,957.42, 400,436.13 and 122,848.70

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Solution

The fourth proportional to 266,957.42, 400,436.13 and 122,848.70 is: 184,273.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,957.42 : 400,436.13 = 122,848.70 : x
  2. Step 2: Convert to fraction form
    266,957.42/400,436.13 = 122,848.70/x
  3. Step 3: Cross multiply
    266,957.42x = 400,436.13 × 122,848.70
  4. Step 4: Simplify right side
    266,957.42x = 49,193,058,003.53
  5. Step 5: Solve for x
    x = 49,193,058,003.53/266,957.42
  6. Step 6: Final answer
    x = 184,273.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.