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Finding the Fourth Proportional to 63,314,728.88, 94,978,979.40 and 20,173,791.92

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Solution

The fourth proportional to 63,314,728.88, 94,978,979.40 and 20,173,791.92 is: 30,262,881.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,314,728.88 : 94,978,979.40 = 20,173,791.92 : x
  2. Step 2: Convert to fraction form
    63,314,728.88/94,978,979.40 = 20,173,791.92/x
  3. Step 3: Cross multiply
    63,314,728.88x = 94,978,979.40 × 20,173,791.92
  4. Step 4: Simplify right side
    63,314,728.88x = 1,916,086,167,189,566.75
  5. Step 5: Solve for x
    x = 1,916,086,167,189,566.75/63,314,728.88
  6. Step 6: Final answer
    x = 30,262,881.97

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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.