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Finding the Fourth Proportional to 73,006.80, 109,553.40 and 48,118.80

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Solution

The fourth proportional to 73,006.80, 109,553.40 and 48,118.80 is: 72,206.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,006.80 : 109,553.40 = 48,118.80 : x
  2. Step 2: Convert to fraction form
    73,006.80/109,553.40 = 48,118.80/x
  3. Step 3: Cross multiply
    73,006.80x = 109,553.40 × 48,118.80
  4. Step 4: Simplify right side
    73,006.80x = 5,271,578,143.92
  5. Step 5: Solve for x
    x = 5,271,578,143.92/73,006.80
  6. Step 6: Final answer
    x = 72,206.67

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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.