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Finding the Fourth Proportional to 117,687.59, 162,409.24 and 63,972.77

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Solution

The fourth proportional to 117,687.59, 162,409.24 and 63,972.77 is: 88,282.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,687.59 : 162,409.24 = 63,972.77 : x
  2. Step 2: Convert to fraction form
    117,687.59/162,409.24 = 63,972.77/x
  3. Step 3: Cross multiply
    117,687.59x = 162,409.24 × 63,972.77
  4. Step 4: Simplify right side
    117,687.59x = 10,389,768,636.53
  5. Step 5: Solve for x
    x = 10,389,768,636.53/117,687.59
  6. Step 6: Final answer
    x = 88,282.62

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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.