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Finding the Fourth Proportional to 117,655.88, 162,362.30 and 65,969.53

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Solution

The fourth proportional to 117,655.88, 162,362.30 and 65,969.53 is: 91,036.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,655.88 : 162,362.30 = 65,969.53 : x
  2. Step 2: Convert to fraction form
    117,655.88/162,362.30 = 65,969.53/x
  3. Step 3: Cross multiply
    117,655.88x = 162,362.30 × 65,969.53
  4. Step 4: Simplify right side
    117,655.88x = 10,710,963,884.97
  5. Step 5: Solve for x
    x = 10,710,963,884.97/117,655.88
  6. Step 6: Final answer
    x = 91,036.37

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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.