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Finding the Fourth Proportional to 70,480.80, 105,526.80 and 54,928.80

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Solution

The fourth proportional to 70,480.80, 105,526.80 and 54,928.80 is: 82,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,480.80 : 105,526.80 = 54,928.80 : x
  2. Step 2: Convert to fraction form
    70,480.80/105,526.80 = 54,928.80/x
  3. Step 3: Cross multiply
    70,480.80x = 105,526.80 × 54,928.80
  4. Step 4: Simplify right side
    70,480.80x = 5,796,460,491.84
  5. Step 5: Solve for x
    x = 5,796,460,491.84/70,480.80
  6. Step 6: Final answer
    x = 82,241.70

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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.