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Finding the Fourth Proportional to 104,824.80, 157,006.80 and 102,520.80

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Solution

The fourth proportional to 104,824.80, 157,006.80 and 102,520.80 is: 153,555.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,824.80 : 157,006.80 = 102,520.80 : x
  2. Step 2: Convert to fraction form
    104,824.80/157,006.80 = 102,520.80/x
  3. Step 3: Cross multiply
    104,824.80x = 157,006.80 × 102,520.80
  4. Step 4: Simplify right side
    104,824.80x = 16,096,462,741.44
  5. Step 5: Solve for x
    x = 16,096,462,741.44/104,824.80
  6. Step 6: Final answer
    x = 153,555.86

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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.