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Finding the Fourth Proportional to 75,289.52, 103,885.80 and 43,446.80

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Solution

The fourth proportional to 75,289.52, 103,885.80 and 43,446.80 is: 59,948.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,289.52 : 103,885.80 = 43,446.80 : x
  2. Step 2: Convert to fraction form
    75,289.52/103,885.80 = 43,446.80/x
  3. Step 3: Cross multiply
    75,289.52x = 103,885.80 × 43,446.80
  4. Step 4: Simplify right side
    75,289.52x = 4,513,505,575.44
  5. Step 5: Solve for x
    x = 4,513,505,575.44/75,289.52
  6. Step 6: Final answer
    x = 59,948.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.