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Finding the Fourth Proportional to 122,978.58, 184,050.88 and 75,623.42

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Solution

The fourth proportional to 122,978.58, 184,050.88 and 75,623.42 is: 113,178.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,978.58 : 184,050.88 = 75,623.42 : x
  2. Step 2: Convert to fraction form
    122,978.58/184,050.88 = 75,623.42/x
  3. Step 3: Cross multiply
    122,978.58x = 184,050.88 × 75,623.42
  4. Step 4: Simplify right side
    122,978.58x = 13,918,555,701.24
  5. Step 5: Solve for x
    x = 13,918,555,701.24/122,978.58
  6. Step 6: Final answer
    x = 113,178.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.