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Finding the Fourth Proportional to 93,137.56, 128,529.84 and 50,696.40

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Solution

The fourth proportional to 93,137.56, 128,529.84 and 50,696.40 is: 69,961.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,137.56 : 128,529.84 = 50,696.40 : x
  2. Step 2: Convert to fraction form
    93,137.56/128,529.84 = 50,696.40/x
  3. Step 3: Cross multiply
    93,137.56x = 128,529.84 × 50,696.40
  4. Step 4: Simplify right side
    93,137.56x = 6,516,000,180.58
  5. Step 5: Solve for x
    x = 6,516,000,180.58/93,137.56
  6. Step 6: Final answer
    x = 69,961.04

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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.