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Finding the Fourth Proportional to 68,024,472.30, 102,054,300.03 and 19,505,877.30

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Solution

The fourth proportional to 68,024,472.30, 102,054,300.03 and 19,505,877.30 is: 29,263,860.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,024,472.30 : 102,054,300.03 = 19,505,877.30 : x
  2. Step 2: Convert to fraction form
    68,024,472.30/102,054,300.03 = 19,505,877.30/x
  3. Step 3: Cross multiply
    68,024,472.30x = 102,054,300.03 × 19,505,877.30
  4. Step 4: Simplify right side
    68,024,472.30x = 1,990,658,654,322,566.50
  5. Step 5: Solve for x
    x = 1,990,658,654,322,566.50/68,024,472.30
  6. Step 6: Final answer
    x = 29,263,860.30

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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.