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Finding the Fourth Proportional to 69,984,005.80, 104,787,051.90 and 69,984,005.80

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Solution

The fourth proportional to 69,984,005.80, 104,787,051.90 and 69,984,005.80 is: 104,787,051.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,984,005.80 : 104,787,051.90 = 69,984,005.80 : x
  2. Step 2: Convert to fraction form
    69,984,005.80/104,787,051.90 = 69,984,005.80/x
  3. Step 3: Cross multiply
    69,984,005.80x = 104,787,051.90 × 69,984,005.80
  4. Step 4: Simplify right side
    69,984,005.80x = 7,333,417,647,934,501
  5. Step 5: Solve for x
    x = 7,333,417,647,934,501/69,984,005.80
  6. Step 6: Final answer
    x = 104,787,051.90

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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.