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Finding the Fourth Proportional to 93,356.50, 128,842.85 and 53,076.29

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Solution

The fourth proportional to 93,356.50, 128,842.85 and 53,076.29 is: 73,251.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,356.50 : 128,842.85 = 53,076.29 : x
  2. Step 2: Convert to fraction form
    93,356.50/128,842.85 = 53,076.29/x
  3. Step 3: Cross multiply
    93,356.50x = 128,842.85 × 53,076.29
  4. Step 4: Simplify right side
    93,356.50x = 6,838,500,321.87
  5. Step 5: Solve for x
    x = 6,838,500,321.87/93,356.50
  6. Step 6: Final answer
    x = 73,251.46

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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.