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Finding the Fourth Proportional to 168,642,615.60, 236,290,980.60 and 168,642,615.60

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Solution

The fourth proportional to 168,642,615.60, 236,290,980.60 and 168,642,615.60 is: 236,290,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,642,615.60 : 236,290,980.60 = 168,642,615.60 : x
  2. Step 2: Convert to fraction form
    168,642,615.60/236,290,980.60 = 168,642,615.60/x
  3. Step 3: Cross multiply
    168,642,615.60x = 236,290,980.60 × 168,642,615.60
  4. Step 4: Simplify right side
    168,642,615.60x = 39,848,729,011,072,856
  5. Step 5: Solve for x
    x = 39,848,729,011,072,856/168,642,615.60
  6. Step 6: Final answer
    x = 236,290,980.60

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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.