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Finding the Fourth Proportional to 173,685.36, 260,119.72 and 84,659.84

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Solution

The fourth proportional to 173,685.36, 260,119.72 and 84,659.84 is: 126,790.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,685.36 : 260,119.72 = 84,659.84 : x
  2. Step 2: Convert to fraction form
    173,685.36/260,119.72 = 84,659.84/x
  3. Step 3: Cross multiply
    173,685.36x = 260,119.72 × 84,659.84
  4. Step 4: Simplify right side
    173,685.36x = 22,021,693,876.04
  5. Step 5: Solve for x
    x = 22,021,693,876.04/173,685.36
  6. Step 6: Final answer
    x = 126,790.73

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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.