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Finding the Fourth Proportional to 93,455.52, 128,968.25 and 51,014.09

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Solution

The fourth proportional to 93,455.52, 128,968.25 and 51,014.09 is: 70,399.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,455.52 : 128,968.25 = 51,014.09 : x
  2. Step 2: Convert to fraction form
    93,455.52/128,968.25 = 51,014.09/x
  3. Step 3: Cross multiply
    93,455.52x = 128,968.25 × 51,014.09
  4. Step 4: Simplify right side
    93,455.52x = 6,579,197,012.73
  5. Step 5: Solve for x
    x = 6,579,197,012.73/93,455.52
  6. Step 6: Final answer
    x = 70,399.23

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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.