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Finding the Fourth Proportional to 266,877.80, 368,201.94 and 153,698.12

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Solution

The fourth proportional to 266,877.80, 368,201.94 and 153,698.12 is: 212,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,877.80 : 368,201.94 = 153,698.12 : x
  2. Step 2: Convert to fraction form
    266,877.80/368,201.94 = 153,698.12/x
  3. Step 3: Cross multiply
    266,877.80x = 368,201.94 × 153,698.12
  4. Step 4: Simplify right side
    266,877.80x = 56,591,945,958.35
  5. Step 5: Solve for x
    x = 56,591,945,958.35/266,877.80
  6. Step 6: Final answer
    x = 212,051.91

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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.