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Finding the Fourth Proportional to 93,270.88, 128,713.62 and 50,829.31

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Solution

The fourth proportional to 93,270.88, 128,713.62 and 50,829.31 is: 70,144.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,270.88 : 128,713.62 = 50,829.31 : x
  2. Step 2: Convert to fraction form
    93,270.88/128,713.62 = 50,829.31/x
  3. Step 3: Cross multiply
    93,270.88x = 128,713.62 × 50,829.31
  4. Step 4: Simplify right side
    93,270.88x = 6,542,424,492.20
  5. Step 5: Solve for x
    x = 6,542,424,492.20/93,270.88
  6. Step 6: Final answer
    x = 70,144.34

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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.