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Finding the Fourth Proportional to 104,647.30, 156,967.43 and 45,482.96

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Solution

The fourth proportional to 104,647.30, 156,967.43 and 45,482.96 is: 68,222.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,647.30 : 156,967.43 = 45,482.96 : x
  2. Step 2: Convert to fraction form
    104,647.30/156,967.43 = 45,482.96/x
  3. Step 3: Cross multiply
    104,647.30x = 156,967.43 × 45,482.96
  4. Step 4: Simplify right side
    104,647.30x = 7,139,343,339.99
  5. Step 5: Solve for x
    x = 7,139,343,339.99/104,647.30
  6. Step 6: Final answer
    x = 68,222.91

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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.