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Finding the Fourth Proportional to 1,566,169.05, 2,187,912.75 and 1,566,169.05

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Solution

The fourth proportional to 1,566,169.05, 2,187,912.75 and 1,566,169.05 is: 2,187,912.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566,169.05 : 2,187,912.75 = 1,566,169.05 : x
  2. Step 2: Convert to fraction form
    1,566,169.05/2,187,912.75 = 1,566,169.05/x
  3. Step 3: Cross multiply
    1,566,169.05x = 2,187,912.75 × 1,566,169.05
  4. Step 4: Simplify right side
    1,566,169.05x = 3,426,641,233,150.39
  5. Step 5: Solve for x
    x = 3,426,641,233,150.39/1,566,169.05
  6. Step 6: Final answer
    x = 2,187,912.75

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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.