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Finding the Fourth Proportional to 79,261,720.90, 110,739,661.10 and 79,261,720.90

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Solution

The fourth proportional to 79,261,720.90, 110,739,661.10 and 79,261,720.90 is: 110,739,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261,720.90 : 110,739,661.10 = 79,261,720.90 : x
  2. Step 2: Convert to fraction form
    79,261,720.90/110,739,661.10 = 79,261,720.90/x
  3. Step 3: Cross multiply
    79,261,720.90x = 110,739,661.10 × 79,261,720.90
  4. Step 4: Simplify right side
    79,261,720.90x = 8,777,416,110,668,787
  5. Step 5: Solve for x
    x = 8,777,416,110,668,787/79,261,720.90
  6. Step 6: Final answer
    x = 110,739,661.10

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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.