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Finding the Fourth Proportional to 72,454.80, 108,682.20 and 44,806.80

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Solution

The fourth proportional to 72,454.80, 108,682.20 and 44,806.80 is: 67,210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,454.80 : 108,682.20 = 44,806.80 : x
  2. Step 2: Convert to fraction form
    72,454.80/108,682.20 = 44,806.80/x
  3. Step 3: Cross multiply
    72,454.80x = 108,682.20 × 44,806.80
  4. Step 4: Simplify right side
    72,454.80x = 4,869,701,598.96
  5. Step 5: Solve for x
    x = 4,869,701,598.96/72,454.80
  6. Step 6: Final answer
    x = 67,210.20

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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.