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Finding the Fourth Proportional to 135,779.94, 203,375.07 and 83,029.50

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Solution

The fourth proportional to 135,779.94, 203,375.07 and 83,029.50 is: 124,363.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,779.94 : 203,375.07 = 83,029.50 : x
  2. Step 2: Convert to fraction form
    135,779.94/203,375.07 = 83,029.50/x
  3. Step 3: Cross multiply
    135,779.94x = 203,375.07 × 83,029.50
  4. Step 4: Simplify right side
    135,779.94x = 16,886,130,374.57
  5. Step 5: Solve for x
    x = 16,886,130,374.57/135,779.94
  6. Step 6: Final answer
    x = 124,363.96

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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.