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Finding the Fourth Proportional to 103,912.96, 155,887.80 and 33,779.92

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Solution

The fourth proportional to 103,912.96, 155,887.80 and 33,779.92 is: 50,675.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,912.96 : 155,887.80 = 33,779.92 : x
  2. Step 2: Convert to fraction form
    103,912.96/155,887.80 = 33,779.92/x
  3. Step 3: Cross multiply
    103,912.96x = 155,887.80 × 33,779.92
  4. Step 4: Simplify right side
    103,912.96x = 5,265,877,412.98
  5. Step 5: Solve for x
    x = 5,265,877,412.98/103,912.96
  6. Step 6: Final answer
    x = 50,675.85

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1.5x scale

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.