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Finding the Fourth Proportional to 173,685.68, 260,520.36 and 72,441.92

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Solution

The fourth proportional to 173,685.68, 260,520.36 and 72,441.92 is: 108,659.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,685.68 : 260,520.36 = 72,441.92 : x
  2. Step 2: Convert to fraction form
    173,685.68/260,520.36 = 72,441.92/x
  3. Step 3: Cross multiply
    173,685.68x = 260,520.36 × 72,441.92
  4. Step 4: Simplify right side
    173,685.68x = 18,872,595,077.49
  5. Step 5: Solve for x
    x = 18,872,595,077.49/173,685.68
  6. Step 6: Final answer
    x = 108,659.48

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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.