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Finding the Fourth Proportional to 104,652.06, 156,978.09 and 29,779.98

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Solution

The fourth proportional to 104,652.06, 156,978.09 and 29,779.98 is: 44,669.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,652.06 : 156,978.09 = 29,779.98 : x
  2. Step 2: Convert to fraction form
    104,652.06/156,978.09 = 29,779.98/x
  3. Step 3: Cross multiply
    104,652.06x = 156,978.09 × 29,779.98
  4. Step 4: Simplify right side
    104,652.06x = 4,674,804,380.64
  5. Step 5: Solve for x
    x = 4,674,804,380.64/104,652.06
  6. Step 6: Final answer
    x = 44,669.97

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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.