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Finding the Fourth Proportional to 229,873,406.80, 344,810,110.20 and 218,535,998.80

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Solution

The fourth proportional to 229,873,406.80, 344,810,110.20 and 218,535,998.80 is: 327,803,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,873,406.80 : 344,810,110.20 = 218,535,998.80 : x
  2. Step 2: Convert to fraction form
    229,873,406.80/344,810,110.20 = 218,535,998.80/x
  3. Step 3: Cross multiply
    229,873,406.80x = 344,810,110.20 × 218,535,998.80
  4. Step 4: Simplify right side
    229,873,406.80x = 75,353,421,828,895,072
  5. Step 5: Solve for x
    x = 75,353,421,828,895,072/229,873,406.80
  6. Step 6: Final answer
    x = 327,803,998.20

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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.