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Finding the Fourth Proportional to 1,268,179,237.80, 1,902,268,856.70 and 1,268,179,237.80

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Solution

The fourth proportional to 1,268,179,237.80, 1,902,268,856.70 and 1,268,179,237.80 is: 1,902,268,856.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,179,237.80 : 1,902,268,856.70 = 1,268,179,237.80 : x
  2. Step 2: Convert to fraction form
    1,268,179,237.80/1,902,268,856.70 = 1,268,179,237.80/x
  3. Step 3: Cross multiply
    1,268,179,237.80x = 1,902,268,856.70 × 1,268,179,237.80
  4. Step 4: Simplify right side
    1,268,179,237.80x = 2,412,417,868,780,483,584
  5. Step 5: Solve for x
    x = 2,412,417,868,780,483,584/1,268,179,237.80
  6. Step 6: Final answer
    x = 1,902,268,856.70

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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.