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Finding the Fourth Proportional to 29,229,879.40, 40,989,015.80 and 29,229,879.40

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Solution

The fourth proportional to 29,229,879.40, 40,989,015.80 and 29,229,879.40 is: 40,989,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,229,879.40 : 40,989,015.80 = 29,229,879.40 : x
  2. Step 2: Convert to fraction form
    29,229,879.40/40,989,015.80 = 29,229,879.40/x
  3. Step 3: Cross multiply
    29,229,879.40x = 40,989,015.80 × 29,229,879.40
  4. Step 4: Simplify right side
    29,229,879.40x = 1,198,103,988,558,694.25
  5. Step 5: Solve for x
    x = 1,198,103,988,558,694.25/29,229,879.40
  6. Step 6: Final answer
    x = 40,989,015.80

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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.