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Finding the Fourth Proportional to 173,953.80, 260,628.30 and 80,267.40

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Solution

The fourth proportional to 173,953.80, 260,628.30 and 80,267.40 is: 120,261.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,953.80 : 260,628.30 = 80,267.40 : x
  2. Step 2: Convert to fraction form
    173,953.80/260,628.30 = 80,267.40/x
  3. Step 3: Cross multiply
    173,953.80x = 260,628.30 × 80,267.40
  4. Step 4: Simplify right side
    173,953.80x = 20,919,956,007.42
  5. Step 5: Solve for x
    x = 20,919,956,007.42/173,953.80
  6. Step 6: Final answer
    x = 120,261.56

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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.