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Finding the Fourth Proportional to 93,137.61, 128,530.08 and 50,696.04

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Solution

The fourth proportional to 93,137.61, 128,530.08 and 50,696.04 is: 69,960.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,137.61 : 128,530.08 = 50,696.04 : x
  2. Step 2: Convert to fraction form
    93,137.61/128,530.08 = 50,696.04/x
  3. Step 3: Cross multiply
    93,137.61x = 128,530.08 × 50,696.04
  4. Step 4: Simplify right side
    93,137.61x = 6,515,966,076.88
  5. Step 5: Solve for x
    x = 6,515,966,076.88/93,137.61
  6. Step 6: Final answer
    x = 69,960.63

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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.