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Finding the Fourth Proportional to 266,486.16, 367,755.72 and 145,632.54

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Solution

The fourth proportional to 266,486.16, 367,755.72 and 145,632.54 is: 200,975.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,486.16 : 367,755.72 = 145,632.54 : x
  2. Step 2: Convert to fraction form
    266,486.16/367,755.72 = 145,632.54/x
  3. Step 3: Cross multiply
    266,486.16x = 367,755.72 × 145,632.54
  4. Step 4: Simplify right side
    266,486.16x = 53,557,199,603.13
  5. Step 5: Solve for x
    x = 53,557,199,603.13/266,486.16
  6. Step 6: Final answer
    x = 200,975.54

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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.