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Finding the Fourth Proportional to 216,074.40, 324,014.40 and 82,910.40

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Solution

The fourth proportional to 216,074.40, 324,014.40 and 82,910.40 is: 124,328.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,074.40 : 324,014.40 = 82,910.40 : x
  2. Step 2: Convert to fraction form
    216,074.40/324,014.40 = 82,910.40/x
  3. Step 3: Cross multiply
    216,074.40x = 324,014.40 × 82,910.40
  4. Step 4: Simplify right side
    216,074.40x = 26,864,163,509.76
  5. Step 5: Solve for x
    x = 26,864,163,509.76/216,074.40
  6. Step 6: Final answer
    x = 124,328.30

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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.