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Finding the Fourth Proportional to 104,604.40, 156,906.60 and 64,655.20

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Solution

The fourth proportional to 104,604.40, 156,906.60 and 64,655.20 is: 96,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,604.40 : 156,906.60 = 64,655.20 : x
  2. Step 2: Convert to fraction form
    104,604.40/156,906.60 = 64,655.20/x
  3. Step 3: Cross multiply
    104,604.40x = 156,906.60 × 64,655.20
  4. Step 4: Simplify right side
    104,604.40x = 10,144,827,604.32
  5. Step 5: Solve for x
    x = 10,144,827,604.32/104,604.40
  6. Step 6: Final answer
    x = 96,982.80

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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.