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Finding the Fourth Proportional to 104,540.88, 156,837.72 and 45,362.16

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Solution

The fourth proportional to 104,540.88, 156,837.72 and 45,362.16 is: 68,054.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,540.88 : 156,837.72 = 45,362.16 : x
  2. Step 2: Convert to fraction form
    104,540.88/156,837.72 = 45,362.16/x
  3. Step 3: Cross multiply
    104,540.88x = 156,837.72 × 45,362.16
  4. Step 4: Simplify right side
    104,540.88x = 7,114,497,748.68
  5. Step 5: Solve for x
    x = 7,114,497,748.68/104,540.88
  6. Step 6: Final answer
    x = 68,054.70

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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.