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Finding the Fourth Proportional to 248,804,711.88, 343,418,788.40 and 144,416,413.44

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Solution

The fourth proportional to 248,804,711.88, 343,418,788.40 and 144,416,413.44 is: 199,334,286.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,804,711.88 : 343,418,788.40 = 144,416,413.44 : x
  2. Step 2: Convert to fraction form
    248,804,711.88/343,418,788.40 = 144,416,413.44/x
  3. Step 3: Cross multiply
    248,804,711.88x = 343,418,788.40 × 144,416,413.44
  4. Step 4: Simplify right side
    248,804,711.88x = 49,595,309,728,638,272
  5. Step 5: Solve for x
    x = 49,595,309,728,638,272/248,804,711.88
  6. Step 6: Final answer
    x = 199,334,286.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.