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Finding the Fourth Proportional to 122,842.96, 184,119.96 and 70,288.72

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Solution

The fourth proportional to 122,842.96, 184,119.96 and 70,288.72 is: 105,350.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,842.96 : 184,119.96 = 70,288.72 : x
  2. Step 2: Convert to fraction form
    122,842.96/184,119.96 = 70,288.72/x
  3. Step 3: Cross multiply
    122,842.96x = 184,119.96 × 70,288.72
  4. Step 4: Simplify right side
    122,842.96x = 12,941,556,314.85
  5. Step 5: Solve for x
    x = 12,941,556,314.85/122,842.96
  6. Step 6: Final answer
    x = 105,350.41

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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.