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Finding the Fourth Proportional to 336,999,674.80, 505,555,499.40 and 132,534,420.40

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Solution

The fourth proportional to 336,999,674.80, 505,555,499.40 and 132,534,420.40 is: 198,823,649.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,999,674.80 : 505,555,499.40 = 132,534,420.40 : x
  2. Step 2: Convert to fraction form
    336,999,674.80/505,555,499.40 = 132,534,420.40/x
  3. Step 3: Cross multiply
    336,999,674.80x = 505,555,499.40 × 132,534,420.40
  4. Step 4: Simplify right side
    336,999,674.80x = 67,003,505,093,011,544
  5. Step 5: Solve for x
    x = 67,003,505,093,011,544/336,999,674.80
  6. Step 6: Final answer
    x = 198,823,649.11

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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.