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Finding the Fourth Proportional to 69,218,727.70, 103,828,091.55 and 69,218,727.70

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Solution

The fourth proportional to 69,218,727.70, 103,828,091.55 and 69,218,727.70 is: 103,828,091.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,218,727.70 : 103,828,091.55 = 69,218,727.70 : x
  2. Step 2: Convert to fraction form
    69,218,727.70/103,828,091.55 = 69,218,727.70/x
  3. Step 3: Cross multiply
    69,218,727.70x = 103,828,091.55 × 69,218,727.70
  4. Step 4: Simplify right side
    69,218,727.70x = 7,186,848,396,610,121
  5. Step 5: Solve for x
    x = 7,186,848,396,610,121/69,218,727.70
  6. Step 6: Final answer
    x = 103,828,091.55

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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.