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Finding the Fourth Proportional to 104,076.55, 156,114.52 and 40,852.43

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Solution

The fourth proportional to 104,076.55, 156,114.52 and 40,852.43 is: 61,278.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,076.55 : 156,114.52 = 40,852.43 : x
  2. Step 2: Convert to fraction form
    104,076.55/156,114.52 = 40,852.43/x
  3. Step 3: Cross multiply
    104,076.55x = 156,114.52 × 40,852.43
  4. Step 4: Simplify right side
    104,076.55x = 6,377,657,500.28
  5. Step 5: Solve for x
    x = 6,377,657,500.28/104,076.55
  6. Step 6: Final answer
    x = 61,278.53

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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.