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Finding the Fourth Proportional to 266,674.78, 368,045.05 and 151,994.64

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Solution

The fourth proportional to 266,674.78, 368,045.05 and 151,994.64 is: 209,771.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,674.78 : 368,045.05 = 151,994.64 : x
  2. Step 2: Convert to fraction form
    266,674.78/368,045.05 = 151,994.64/x
  3. Step 3: Cross multiply
    266,674.78x = 368,045.05 × 151,994.64
  4. Step 4: Simplify right side
    266,674.78x = 55,940,874,878.53
  5. Step 5: Solve for x
    x = 55,940,874,878.53/266,674.78
  6. Step 6: Final answer
    x = 209,771.90

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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.