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Finding the Fourth Proportional to 165,440,805.60, 248,161,208.40 and 165,440,805.60

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Solution

The fourth proportional to 165,440,805.60, 248,161,208.40 and 165,440,805.60 is: 248,161,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,440,805.60 : 248,161,208.40 = 165,440,805.60 : x
  2. Step 2: Convert to fraction form
    165,440,805.60/248,161,208.40 = 165,440,805.60/x
  3. Step 3: Cross multiply
    165,440,805.60x = 248,161,208.40 × 165,440,805.60
  4. Step 4: Simplify right side
    165,440,805.60x = 41,055,990,236,365,488
  5. Step 5: Solve for x
    x = 41,055,990,236,365,488/165,440,805.60
  6. Step 6: Final answer
    x = 248,161,208.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.