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Finding the Fourth Proportional to 173,861.60, 260,727.60 and 121,114.40

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Solution

The fourth proportional to 173,861.60, 260,727.60 and 121,114.40 is: 181,626.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,861.60 : 260,727.60 = 121,114.40 : x
  2. Step 2: Convert to fraction form
    173,861.60/260,727.60 = 121,114.40/x
  3. Step 3: Cross multiply
    173,861.60x = 260,727.60 × 121,114.40
  4. Step 4: Simplify right side
    173,861.60x = 31,577,866,837.44
  5. Step 5: Solve for x
    x = 31,577,866,837.44/173,861.60
  6. Step 6: Final answer
    x = 181,626.46

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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.