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Finding the Fourth Proportional to 173,863.40, 260,697.90 and 80,253.32

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Solution

The fourth proportional to 173,863.40, 260,697.90 and 80,253.32 is: 120,335.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,863.40 : 260,697.90 = 80,253.32 : x
  2. Step 2: Convert to fraction form
    173,863.40/260,697.90 = 80,253.32/x
  3. Step 3: Cross multiply
    173,863.40x = 260,697.90 × 80,253.32
  4. Step 4: Simplify right side
    173,863.40x = 20,921,871,992.03
  5. Step 5: Solve for x
    x = 20,921,871,992.03/173,863.40
  6. Step 6: Final answer
    x = 120,335.11

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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.