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Finding the Fourth Proportional to 103,659.40, 155,489.82 and 44,445.16

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Solution

The fourth proportional to 103,659.40, 155,489.82 and 44,445.16 is: 66,668.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,659.40 : 155,489.82 = 44,445.16 : x
  2. Step 2: Convert to fraction form
    103,659.40/155,489.82 = 44,445.16/x
  3. Step 3: Cross multiply
    103,659.40x = 155,489.82 × 44,445.16
  4. Step 4: Simplify right side
    103,659.40x = 6,910,769,928.27
  5. Step 5: Solve for x
    x = 6,910,769,928.27/103,659.40
  6. Step 6: Final answer
    x = 66,668.05

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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.