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Finding the Fourth Proportional to 93,388.49, 128,873.57 and 50,947.01

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Solution

The fourth proportional to 93,388.49, 128,873.57 and 50,947.01 is: 70,305.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,388.49 : 128,873.57 = 50,947.01 : x
  2. Step 2: Convert to fraction form
    93,388.49/128,873.57 = 50,947.01/x
  3. Step 3: Cross multiply
    93,388.49x = 128,873.57 × 50,947.01
  4. Step 4: Simplify right side
    93,388.49x = 6,565,722,804.79
  5. Step 5: Solve for x
    x = 6,565,722,804.79/93,388.49
  6. Step 6: Final answer
    x = 70,305.48

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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.