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Finding the Fourth Proportional to 93,306.63, 128,766.46 and 53,022.09

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Solution

The fourth proportional to 93,306.63, 128,766.46 and 53,022.09 is: 73,172.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,306.63 : 128,766.46 = 53,022.09 : x
  2. Step 2: Convert to fraction form
    93,306.63/128,766.46 = 53,022.09/x
  3. Step 3: Cross multiply
    93,306.63x = 128,766.46 × 53,022.09
  4. Step 4: Simplify right side
    93,306.63x = 6,827,467,280.84
  5. Step 5: Solve for x
    x = 6,827,467,280.84/93,306.63
  6. Step 6: Final answer
    x = 73,172.37

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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.