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Finding the Fourth Proportional to 139,968,138.80, 195,501,898 and 139,968,138.80

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Solution

The fourth proportional to 139,968,138.80, 195,501,898 and 139,968,138.80 is: 195,501,898

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,138.80 : 195,501,898 = 139,968,138.80 : x
  2. Step 2: Convert to fraction form
    139,968,138.80/195,501,898 = 139,968,138.80/x
  3. Step 3: Cross multiply
    139,968,138.80x = 195,501,898 × 139,968,138.80
  4. Step 4: Simplify right side
    139,968,138.80x = 27,364,036,794,927,444
  5. Step 5: Solve for x
    x = 27,364,036,794,927,444/139,968,138.80
  6. Step 6: Final answer
    x = 195,501,898

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.