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Finding the Fourth Proportional to 93,781,361.60, 140,672,042.40 and 84,524,811.20

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Solution

The fourth proportional to 93,781,361.60, 140,672,042.40 and 84,524,811.20 is: 126,787,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,781,361.60 : 140,672,042.40 = 84,524,811.20 : x
  2. Step 2: Convert to fraction form
    93,781,361.60/140,672,042.40 = 84,524,811.20/x
  3. Step 3: Cross multiply
    93,781,361.60x = 140,672,042.40 × 84,524,811.20
  4. Step 4: Simplify right side
    93,781,361.60x = 11,890,277,824,978,396
  5. Step 5: Solve for x
    x = 11,890,277,824,978,396/93,781,361.60
  6. Step 6: Final answer
    x = 126,787,216.80

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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.