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Finding the Fourth Proportional to 117,662.94, 162,398.48 and 69,907.10

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Solution

The fourth proportional to 117,662.94, 162,398.48 and 69,907.10 is: 96,485.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,662.94 : 162,398.48 = 69,907.10 : x
  2. Step 2: Convert to fraction form
    117,662.94/162,398.48 = 69,907.10/x
  3. Step 3: Cross multiply
    117,662.94x = 162,398.48 × 69,907.10
  4. Step 4: Simplify right side
    117,662.94x = 11,352,805,619.68
  5. Step 5: Solve for x
    x = 11,352,805,619.68/117,662.94
  6. Step 6: Final answer
    x = 96,485.82

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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.