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Finding the Fourth Proportional to 82,767.40, 124,202.40 and 43,352.80

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Solution

The fourth proportional to 82,767.40, 124,202.40 and 43,352.80 is: 65,056.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,767.40 : 124,202.40 = 43,352.80 : x
  2. Step 2: Convert to fraction form
    82,767.40/124,202.40 = 43,352.80/x
  3. Step 3: Cross multiply
    82,767.40x = 124,202.40 × 43,352.80
  4. Step 4: Simplify right side
    82,767.40x = 5,384,521,806.72
  5. Step 5: Solve for x
    x = 5,384,521,806.72/82,767.40
  6. Step 6: Final answer
    x = 65,056.07

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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.