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Finding the Fourth Proportional to 104,407.12, 156,505.56 and 60,020.56

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Solution

The fourth proportional to 104,407.12, 156,505.56 and 60,020.56 is: 89,970.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,407.12 : 156,505.56 = 60,020.56 : x
  2. Step 2: Convert to fraction form
    104,407.12/156,505.56 = 60,020.56/x
  3. Step 3: Cross multiply
    104,407.12x = 156,505.56 × 60,020.56
  4. Step 4: Simplify right side
    104,407.12x = 9,393,551,354.31
  5. Step 5: Solve for x
    x = 9,393,551,354.31/104,407.12
  6. Step 6: Final answer
    x = 89,970.41

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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.