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Finding the Fourth Proportional to 63,830,327.76, 95,758,942.68 and 20,696,167.65

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Solution

The fourth proportional to 63,830,327.76, 95,758,942.68 and 20,696,167.65 is: 31,048,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,830,327.76 : 95,758,942.68 = 20,696,167.65 : x
  2. Step 2: Convert to fraction form
    63,830,327.76/95,758,942.68 = 20,696,167.65/x
  3. Step 3: Cross multiply
    63,830,327.76x = 95,758,942.68 × 20,696,167.65
  4. Step 4: Simplify right side
    63,830,327.76x = 1,981,843,131,692,020.25
  5. Step 5: Solve for x
    x = 1,981,843,131,692,020.25/63,830,327.76
  6. Step 6: Final answer
    x = 31,048,612.80

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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.