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Finding the Fourth Proportional to 103,912.46, 155,887.05 and 33,779.42

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Solution

The fourth proportional to 103,912.46, 155,887.05 and 33,779.42 is: 50,675.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,912.46 : 155,887.05 = 33,779.42 : x
  2. Step 2: Convert to fraction form
    103,912.46/155,887.05 = 33,779.42/x
  3. Step 3: Cross multiply
    103,912.46x = 155,887.05 × 33,779.42
  4. Step 4: Simplify right side
    103,912.46x = 5,265,774,134.51
  5. Step 5: Solve for x
    x = 5,265,774,134.51/103,912.46
  6. Step 6: Final answer
    x = 50,675.10

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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.