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Finding the Fourth Proportional to 122,967.60, 184,451.40 and 39,861.60

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Solution

The fourth proportional to 122,967.60, 184,451.40 and 39,861.60 is: 59,792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,967.60 : 184,451.40 = 39,861.60 : x
  2. Step 2: Convert to fraction form
    122,967.60/184,451.40 = 39,861.60/x
  3. Step 3: Cross multiply
    122,967.60x = 184,451.40 × 39,861.60
  4. Step 4: Simplify right side
    122,967.60x = 7,352,527,926.24
  5. Step 5: Solve for x
    x = 7,352,527,926.24/122,967.60
  6. Step 6: Final answer
    x = 59,792.40

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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.