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Finding the Fourth Proportional to 339,969,416.60, 509,954,124.90 and 109,961,751.80

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Solution

The fourth proportional to 339,969,416.60, 509,954,124.90 and 109,961,751.80 is: 164,942,627.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,969,416.60 : 509,954,124.90 = 109,961,751.80 : x
  2. Step 2: Convert to fraction form
    339,969,416.60/509,954,124.90 = 109,961,751.80/x
  3. Step 3: Cross multiply
    339,969,416.60x = 509,954,124.90 × 109,961,751.80
  4. Step 4: Simplify right side
    339,969,416.60x = 56,075,448,911,639,992
  5. Step 5: Solve for x
    x = 56,075,448,911,639,992/339,969,416.60
  6. Step 6: Final answer
    x = 164,942,627.70

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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.