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Finding the Fourth Proportional to 262,656,245.80, 393,984,368.70 and 176,659,906.60

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Solution

The fourth proportional to 262,656,245.80, 393,984,368.70 and 176,659,906.60 is: 264,989,859.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,656,245.80 : 393,984,368.70 = 176,659,906.60 : x
  2. Step 2: Convert to fraction form
    262,656,245.80/393,984,368.70 = 176,659,906.60/x
  3. Step 3: Cross multiply
    262,656,245.80x = 393,984,368.70 × 176,659,906.60
  4. Step 4: Simplify right side
    262,656,245.80x = 69,601,241,776,401,960
  5. Step 5: Solve for x
    x = 69,601,241,776,401,960/262,656,245.80
  6. Step 6: Final answer
    x = 264,989,859.90

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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.