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Finding the Fourth Proportional to 63,314,715.38, 94,978,959.15 and 20,173,778.42

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Solution

The fourth proportional to 63,314,715.38, 94,978,959.15 and 20,173,778.42 is: 30,262,861.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,314,715.38 : 94,978,959.15 = 20,173,778.42 : x
  2. Step 2: Convert to fraction form
    63,314,715.38/94,978,959.15 = 20,173,778.42/x
  3. Step 3: Cross multiply
    63,314,715.38x = 94,978,959.15 × 20,173,778.42
  4. Step 4: Simplify right side
    63,314,715.38x = 1,916,084,476,454,331.75
  5. Step 5: Solve for x
    x = 1,916,084,476,454,331.75/63,314,715.38
  6. Step 6: Final answer
    x = 30,262,861.72

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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.