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Finding the Fourth Proportional to 168,816,091.20, 236,880,004.80 and 168,816,091.20

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Solution

The fourth proportional to 168,816,091.20, 236,880,004.80 and 168,816,091.20 is: 236,880,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,816,091.20 : 236,880,004.80 = 168,816,091.20 : x
  2. Step 2: Convert to fraction form
    168,816,091.20/236,880,004.80 = 168,816,091.20/x
  3. Step 3: Cross multiply
    168,816,091.20x = 236,880,004.80 × 168,816,091.20
  4. Step 4: Simplify right side
    168,816,091.20x = 39,989,156,493,773,240
  5. Step 5: Solve for x
    x = 39,989,156,493,773,240/168,816,091.20
  6. Step 6: Final answer
    x = 236,880,004.80

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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.