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Finding the Fourth Proportional to 301,907,269.20, 452,860,903.80 and 129,401,520.60

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Solution

The fourth proportional to 301,907,269.20, 452,860,903.80 and 129,401,520.60 is: 194,102,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,907,269.20 : 452,860,903.80 = 129,401,520.60 : x
  2. Step 2: Convert to fraction form
    301,907,269.20/452,860,903.80 = 129,401,520.60/x
  3. Step 3: Cross multiply
    301,907,269.20x = 452,860,903.80 × 129,401,520.60
  4. Step 4: Simplify right side
    301,907,269.20x = 58,600,889,572,010,320
  5. Step 5: Solve for x
    x = 58,600,889,572,010,320/301,907,269.20
  6. Step 6: Final answer
    x = 194,102,280.90

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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.