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Finding the Fourth Proportional to 57,886.60, 86,829.90 and 50,744.20

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Solution

The fourth proportional to 57,886.60, 86,829.90 and 50,744.20 is: 76,116.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,886.60 : 86,829.90 = 50,744.20 : x
  2. Step 2: Convert to fraction form
    57,886.60/86,829.90 = 50,744.20/x
  3. Step 3: Cross multiply
    57,886.60x = 86,829.90 × 50,744.20
  4. Step 4: Simplify right side
    57,886.60x = 4,406,113,811.58
  5. Step 5: Solve for x
    x = 4,406,113,811.58/57,886.60
  6. Step 6: Final answer
    x = 76,116.30

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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.