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Finding the Fourth Proportional to 231,880,887.40, 325,110,999.80 and 231,880,887.40

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Solution

The fourth proportional to 231,880,887.40, 325,110,999.80 and 231,880,887.40 is: 325,110,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,880,887.40 : 325,110,999.80 = 231,880,887.40 : x
  2. Step 2: Convert to fraction form
    231,880,887.40/325,110,999.80 = 231,880,887.40/x
  3. Step 3: Cross multiply
    231,880,887.40x = 325,110,999.80 × 231,880,887.40
  4. Step 4: Simplify right side
    231,880,887.40x = 75,387,027,137,125,232
  5. Step 5: Solve for x
    x = 75,387,027,137,125,232/231,880,887.40
  6. Step 6: Final answer
    x = 325,110,999.80

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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.