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Finding the Fourth Proportional to 104,596.74, 156,806.69 and 45,387.63

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Solution

The fourth proportional to 104,596.74, 156,806.69 and 45,387.63 is: 68,043.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,596.74 : 156,806.69 = 45,387.63 : x
  2. Step 2: Convert to fraction form
    104,596.74/156,806.69 = 45,387.63/x
  3. Step 3: Cross multiply
    104,596.74x = 156,806.69 × 45,387.63
  4. Step 4: Simplify right side
    104,596.74x = 7,117,083,800.31
  5. Step 5: Solve for x
    x = 7,117,083,800.31/104,596.74
  6. Step 6: Final answer
    x = 68,043.07

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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.