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Finding the Fourth Proportional to 93,218.28, 139,716.42 and 53,693.52

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Solution

The fourth proportional to 93,218.28, 139,716.42 and 53,693.52 is: 80,476.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,218.28 : 139,716.42 = 53,693.52 : x
  2. Step 2: Convert to fraction form
    93,218.28/139,716.42 = 53,693.52/x
  3. Step 3: Cross multiply
    93,218.28x = 139,716.42 × 53,693.52
  4. Step 4: Simplify right side
    93,218.28x = 7,501,866,391.60
  5. Step 5: Solve for x
    x = 7,501,866,391.60/93,218.28
  6. Step 6: Final answer
    x = 80,476.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.