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Finding the Fourth Proportional to 93,940.59, 129,639.69 and 50,921.49

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Solution

The fourth proportional to 93,940.59, 129,639.69 and 50,921.49 is: 70,272.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,940.59 : 129,639.69 = 50,921.49 : x
  2. Step 2: Convert to fraction form
    93,940.59/129,639.69 = 50,921.49/x
  3. Step 3: Cross multiply
    93,940.59x = 129,639.69 × 50,921.49
  4. Step 4: Simplify right side
    93,940.59x = 6,601,446,664.09
  5. Step 5: Solve for x
    x = 6,601,446,664.09/93,940.59
  6. Step 6: Final answer
    x = 70,272.57

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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.