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Finding the Fourth Proportional to 168,493,435.10, 236,400,992.50 and 168,493,435.10

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Solution

The fourth proportional to 168,493,435.10, 236,400,992.50 and 168,493,435.10 is: 236,400,992.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,493,435.10 : 236,400,992.50 = 168,493,435.10 : x
  2. Step 2: Convert to fraction form
    168,493,435.10/236,400,992.50 = 168,493,435.10/x
  3. Step 3: Cross multiply
    168,493,435.10x = 236,400,992.50 × 168,493,435.10
  4. Step 4: Simplify right side
    168,493,435.10x = 39,832,015,287,374,336
  5. Step 5: Solve for x
    x = 39,832,015,287,374,336/168,493,435.10
  6. Step 6: Final answer
    x = 236,400,992.50

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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.