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Finding the Fourth Proportional to 229,950,007.20, 344,925,010.80 and 220,880,080.80

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Solution

The fourth proportional to 229,950,007.20, 344,925,010.80 and 220,880,080.80 is: 331,320,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,950,007.20 : 344,925,010.80 = 220,880,080.80 : x
  2. Step 2: Convert to fraction form
    229,950,007.20/344,925,010.80 = 220,880,080.80/x
  3. Step 3: Cross multiply
    229,950,007.20x = 344,925,010.80 × 220,880,080.80
  4. Step 4: Simplify right side
    229,950,007.20x = 76,187,064,255,444,880
  5. Step 5: Solve for x
    x = 76,187,064,255,444,880/229,950,007.20
  6. Step 6: Final answer
    x = 331,320,121.20

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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.