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Finding the Fourth Proportional to 93,085.92, 128,454.75 and 50,644.47

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Solution

The fourth proportional to 93,085.92, 128,454.75 and 50,644.47 is: 69,887.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,085.92 : 128,454.75 = 50,644.47 : x
  2. Step 2: Convert to fraction form
    93,085.92/128,454.75 = 50,644.47/x
  3. Step 3: Cross multiply
    93,085.92x = 128,454.75 × 50,644.47
  4. Step 4: Simplify right side
    93,085.92x = 6,505,522,732.73
  5. Step 5: Solve for x
    x = 6,505,522,732.73/93,085.92
  6. Step 6: Final answer
    x = 69,887.29

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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.