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Finding the Fourth Proportional to 222,509,969.80, 333,764,954.70 and 145,877,489.80

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Solution

The fourth proportional to 222,509,969.80, 333,764,954.70 and 145,877,489.80 is: 218,816,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,509,969.80 : 333,764,954.70 = 145,877,489.80 : x
  2. Step 2: Convert to fraction form
    222,509,969.80/333,764,954.70 = 145,877,489.80/x
  3. Step 3: Cross multiply
    222,509,969.80x = 333,764,954.70 × 145,877,489.80
  4. Step 4: Simplify right side
    222,509,969.80x = 48,688,793,774,846,712
  5. Step 5: Solve for x
    x = 48,688,793,774,846,712/222,509,969.80
  6. Step 6: Final answer
    x = 218,816,234.70

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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.