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Finding the Fourth Proportional to 132,388.63, 182,699.88 and 71,963.36

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Solution

The fourth proportional to 132,388.63, 182,699.88 and 71,963.36 is: 99,311.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,388.63 : 182,699.88 = 71,963.36 : x
  2. Step 2: Convert to fraction form
    132,388.63/182,699.88 = 71,963.36/x
  3. Step 3: Cross multiply
    132,388.63x = 182,699.88 × 71,963.36
  4. Step 4: Simplify right side
    132,388.63x = 13,147,697,236.40
  5. Step 5: Solve for x
    x = 13,147,697,236.40/132,388.63
  6. Step 6: Final answer
    x = 99,311.38

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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.