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Finding the Fourth Proportional to 132,543, 182,909.34 and 72,927

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Solution

The fourth proportional to 132,543, 182,909.34 and 72,927 is: 100,639.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,543 : 182,909.34 = 72,927 : x
  2. Step 2: Convert to fraction form
    132,543/182,909.34 = 72,927/x
  3. Step 3: Cross multiply
    132,543x = 182,909.34 × 72,927
  4. Step 4: Simplify right side
    132,543x = 13,339,029,438.18
  5. Step 5: Solve for x
    x = 13,339,029,438.18/132,543
  6. Step 6: Final answer
    x = 100,639.26

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.