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Finding the Fourth Proportional to 99,794,879.60, 149,692,319.40 and 92,329,919.60

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Solution

The fourth proportional to 99,794,879.60, 149,692,319.40 and 92,329,919.60 is: 138,494,879.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,794,879.60 : 149,692,319.40 = 92,329,919.60 : x
  2. Step 2: Convert to fraction form
    99,794,879.60/149,692,319.40 = 92,329,919.60/x
  3. Step 3: Cross multiply
    99,794,879.60x = 149,692,319.40 × 92,329,919.60
  4. Step 4: Simplify right side
    99,794,879.60x = 13,821,079,814,939,520
  5. Step 5: Solve for x
    x = 13,821,079,814,939,520/99,794,879.60
  6. Step 6: Final answer
    x = 138,494,879.40

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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.