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Finding the Fourth Proportional to 72,382,261.60, 108,589,138.80 and 23,851,856.80

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Solution

The fourth proportional to 72,382,261.60, 108,589,138.80 and 23,851,856.80 is: 35,782,974.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,382,261.60 : 108,589,138.80 = 23,851,856.80 : x
  2. Step 2: Convert to fraction form
    72,382,261.60/108,589,138.80 = 23,851,856.80/x
  3. Step 3: Cross multiply
    72,382,261.60x = 108,589,138.80 × 23,851,856.80
  4. Step 4: Simplify right side
    72,382,261.60x = 2,590,052,588,692,924
  5. Step 5: Solve for x
    x = 2,590,052,588,692,924/72,382,261.60
  6. Step 6: Final answer
    x = 35,782,974.05

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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.