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Finding the Fourth Proportional to 93,076.71, 128,449.08 and 50,636.76

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Solution

The fourth proportional to 93,076.71, 128,449.08 and 50,636.76 is: 69,880.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,076.71 : 128,449.08 = 50,636.76 : x
  2. Step 2: Convert to fraction form
    93,076.71/128,449.08 = 50,636.76/x
  3. Step 3: Cross multiply
    93,076.71x = 128,449.08 × 50,636.76
  4. Step 4: Simplify right side
    93,076.71x = 6,504,245,236.18
  5. Step 5: Solve for x
    x = 6,504,245,236.18/93,076.71
  6. Step 6: Final answer
    x = 69,880.48

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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.