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Finding the Fourth Proportional to 139,968,111.83, 209,952,167.74 and 139,968,111.83

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Solution

The fourth proportional to 139,968,111.83, 209,952,167.74 and 139,968,111.83 is: 209,952,167.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,111.83 : 209,952,167.74 = 139,968,111.83 : x
  2. Step 2: Convert to fraction form
    139,968,111.83/209,952,167.74 = 139,968,111.83/x
  3. Step 3: Cross multiply
    139,968,111.83x = 209,952,167.74 × 139,968,111.83
  4. Step 4: Simplify right side
    139,968,111.83x = 29,386,608,491,783,556
  5. Step 5: Solve for x
    x = 29,386,608,491,783,556/139,968,111.83
  6. Step 6: Final answer
    x = 209,952,167.74

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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.