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Finding the Fourth Proportional to 260,242.00, 390,401.88 and 82,754.80

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Solution

The fourth proportional to 260,242.00, 390,401.88 and 82,754.80 is: 124,144.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,242.00 : 390,401.88 = 82,754.80 : x
  2. Step 2: Convert to fraction form
    260,242.00/390,401.88 = 82,754.80/x
  3. Step 3: Cross multiply
    260,242.00x = 390,401.88 × 82,754.80
  4. Step 4: Simplify right side
    260,242.00x = 32,307,628,212.69
  5. Step 5: Solve for x
    x = 32,307,628,212.69/260,242.00
  6. Step 6: Final answer
    x = 124,144.56

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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.