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Finding the Fourth Proportional to 229,330,866.40, 321,970,205.60 and 229,330,866.40

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Solution

The fourth proportional to 229,330,866.40, 321,970,205.60 and 229,330,866.40 is: 321,970,205.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,330,866.40 : 321,970,205.60 = 229,330,866.40 : x
  2. Step 2: Convert to fraction form
    229,330,866.40/321,970,205.60 = 229,330,866.40/x
  3. Step 3: Cross multiply
    229,330,866.40x = 321,970,205.60 × 229,330,866.40
  4. Step 4: Simplify right side
    229,330,866.40x = 73,837,706,205,234,144
  5. Step 5: Solve for x
    x = 73,837,706,205,234,144/229,330,866.40
  6. Step 6: Final answer
    x = 321,970,205.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.