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Finding the Fourth Proportional to 221,281,606.40, 331,922,409.60 and 221,281,606.40

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Solution

The fourth proportional to 221,281,606.40, 331,922,409.60 and 221,281,606.40 is: 331,922,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,281,606.40 : 331,922,409.60 = 221,281,606.40 : x
  2. Step 2: Convert to fraction form
    221,281,606.40/331,922,409.60 = 221,281,606.40/x
  3. Step 3: Cross multiply
    221,281,606.40x = 331,922,409.60 × 221,281,606.40
  4. Step 4: Simplify right side
    221,281,606.40x = 73,448,323,996,446,784
  5. Step 5: Solve for x
    x = 73,448,323,996,446,784/221,281,606.40
  6. Step 6: Final answer
    x = 331,922,409.60

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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.