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Finding the Fourth Proportional to 83,457.89, 125,186.83 and 20,277.68

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Solution

The fourth proportional to 83,457.89, 125,186.83 and 20,277.68 is: 30,416.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,457.89 : 125,186.83 = 20,277.68 : x
  2. Step 2: Convert to fraction form
    83,457.89/125,186.83 = 20,277.68/x
  3. Step 3: Cross multiply
    83,457.89x = 125,186.83 × 20,277.68
  4. Step 4: Simplify right side
    83,457.89x = 2,538,498,741.23
  5. Step 5: Solve for x
    x = 2,538,498,741.23/83,457.89
  6. Step 6: Final answer
    x = 30,416.52

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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.