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Finding the Fourth Proportional to 117,252.56, 161,811.54 and 71,955.56

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Solution

The fourth proportional to 117,252.56, 161,811.54 and 71,955.56 is: 99,300.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,252.56 : 161,811.54 = 71,955.56 : x
  2. Step 2: Convert to fraction form
    117,252.56/161,811.54 = 71,955.56/x
  3. Step 3: Cross multiply
    117,252.56x = 161,811.54 × 71,955.56
  4. Step 4: Simplify right side
    117,252.56x = 11,643,239,975.16
  5. Step 5: Solve for x
    x = 11,643,239,975.16/117,252.56
  6. Step 6: Final answer
    x = 99,300.52

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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.