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Finding the Fourth Proportional to 132,805.62, 183,266.40 and 72,374.96

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Solution

The fourth proportional to 132,805.62, 183,266.40 and 72,374.96 is: 99,874.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,805.62 : 183,266.40 = 72,374.96 : x
  2. Step 2: Convert to fraction form
    132,805.62/183,266.40 = 72,374.96/x
  3. Step 3: Cross multiply
    132,805.62x = 183,266.40 × 72,374.96
  4. Step 4: Simplify right side
    132,805.62x = 13,263,898,369.34
  5. Step 5: Solve for x
    x = 13,263,898,369.34/132,805.62
  6. Step 6: Final answer
    x = 99,874.53

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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.