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Finding the Fourth Proportional to 62,994,401.20, 94,491,601.80 and 19,876,821.40

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Solution

The fourth proportional to 62,994,401.20, 94,491,601.80 and 19,876,821.40 is: 29,815,232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,994,401.20 : 94,491,601.80 = 19,876,821.40 : x
  2. Step 2: Convert to fraction form
    62,994,401.20/94,491,601.80 = 19,876,821.40/x
  3. Step 3: Cross multiply
    62,994,401.20x = 94,491,601.80 × 19,876,821.40
  4. Step 4: Simplify right side
    62,994,401.20x = 1,878,192,692,778,518.25
  5. Step 5: Solve for x
    x = 1,878,192,692,778,518.25/62,994,401.20
  6. Step 6: Final answer
    x = 29,815,232.10

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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.