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Finding the Fourth Proportional to 69,984,068.78, 104,976,103.16 and 69,984,068.78

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Solution

The fourth proportional to 69,984,068.78, 104,976,103.16 and 69,984,068.78 is: 104,976,103.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,984,068.78 : 104,976,103.16 = 69,984,068.78 : x
  2. Step 2: Convert to fraction form
    69,984,068.78/104,976,103.16 = 69,984,068.78/x
  3. Step 3: Cross multiply
    69,984,068.78x = 104,976,103.16 × 69,984,068.78
  4. Step 4: Simplify right side
    69,984,068.78x = 7,346,654,823,455,895
  5. Step 5: Solve for x
    x = 7,346,654,823,455,895/69,984,068.78
  6. Step 6: Final answer
    x = 104,976,103.16

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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.