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Finding the Fourth Proportional to 266,676.09, 368,105.67 and 153,543.93

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Solution

The fourth proportional to 266,676.09, 368,105.67 and 153,543.93 is: 211,943.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,676.09 : 368,105.67 = 153,543.93 : x
  2. Step 2: Convert to fraction form
    266,676.09/368,105.67 = 153,543.93/x
  3. Step 3: Cross multiply
    266,676.09x = 368,105.67 × 153,543.93
  4. Step 4: Simplify right side
    266,676.09x = 56,520,391,227.08
  5. Step 5: Solve for x
    x = 56,520,391,227.08/266,676.09
  6. Step 6: Final answer
    x = 211,943.98

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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.