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Finding the Fourth Proportional to 93,052.64, 128,371.46 and 57,221.48

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Solution

The fourth proportional to 93,052.64, 128,371.46 and 57,221.48 is: 78,940.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,052.64 : 128,371.46 = 57,221.48 : x
  2. Step 2: Convert to fraction form
    93,052.64/128,371.46 = 57,221.48/x
  3. Step 3: Cross multiply
    93,052.64x = 128,371.46 × 57,221.48
  4. Step 4: Simplify right side
    93,052.64x = 7,345,604,965.78
  5. Step 5: Solve for x
    x = 7,345,604,965.78/93,052.64
  6. Step 6: Final answer
    x = 78,940.32

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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.