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Finding the Fourth Proportional to 54,300.70, 81,451.05 and 41,178.70

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Solution

The fourth proportional to 54,300.70, 81,451.05 and 41,178.70 is: 61,768.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,300.70 : 81,451.05 = 41,178.70 : x
  2. Step 2: Convert to fraction form
    54,300.70/81,451.05 = 41,178.70/x
  3. Step 3: Cross multiply
    54,300.70x = 81,451.05 × 41,178.70
  4. Step 4: Simplify right side
    54,300.70x = 3,354,048,352.64
  5. Step 5: Solve for x
    x = 3,354,048,352.64/54,300.70
  6. Step 6: Final answer
    x = 61,768.05

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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.