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Finding the Fourth Proportional to 93,241.47, 128,673.24 and 50,800

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Solution

The fourth proportional to 93,241.47, 128,673.24 and 50,800 is: 70,104.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,241.47 : 128,673.24 = 50,800 : x
  2. Step 2: Convert to fraction form
    93,241.47/128,673.24 = 50,800/x
  3. Step 3: Cross multiply
    93,241.47x = 128,673.24 × 50,800
  4. Step 4: Simplify right side
    93,241.47x = 6,536,600,592
  5. Step 5: Solve for x
    x = 6,536,600,592/93,241.47
  6. Step 6: Final answer
    x = 70,104.01

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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.