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Finding the Fourth Proportional to 70,482.80, 105,529.80 and 54,930.80

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Solution

The fourth proportional to 70,482.80, 105,529.80 and 54,930.80 is: 82,244.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,482.80 : 105,529.80 = 54,930.80 : x
  2. Step 2: Convert to fraction form
    70,482.80/105,529.80 = 54,930.80/x
  3. Step 3: Cross multiply
    70,482.80x = 105,529.80 × 54,930.80
  4. Step 4: Simplify right side
    70,482.80x = 5,796,836,337.84
  5. Step 5: Solve for x
    x = 5,796,836,337.84/70,482.80
  6. Step 6: Final answer
    x = 82,244.69

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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.