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Finding the Fourth Proportional to 93,684.60, 140,478.30 and 34,489.80

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Solution

The fourth proportional to 93,684.60, 140,478.30 and 34,489.80 is: 51,716.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,684.60 : 140,478.30 = 34,489.80 : x
  2. Step 2: Convert to fraction form
    93,684.60/140,478.30 = 34,489.80/x
  3. Step 3: Cross multiply
    93,684.60x = 140,478.30 × 34,489.80
  4. Step 4: Simplify right side
    93,684.60x = 4,845,068,471.34
  5. Step 5: Solve for x
    x = 4,845,068,471.34/93,684.60
  6. Step 6: Final answer
    x = 51,716.81

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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.