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Finding the Fourth Proportional to 93,356.54, 128,830.46 and 50,912.54

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Solution

The fourth proportional to 93,356.54, 128,830.46 and 50,912.54 is: 70,258.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,356.54 : 128,830.46 = 50,912.54 : x
  2. Step 2: Convert to fraction form
    93,356.54/128,830.46 = 50,912.54/x
  3. Step 3: Cross multiply
    93,356.54x = 128,830.46 × 50,912.54
  4. Step 4: Simplify right side
    93,356.54x = 6,559,085,947.97
  5. Step 5: Solve for x
    x = 6,559,085,947.97/93,356.54
  6. Step 6: Final answer
    x = 70,258.45

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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.