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Finding the Fourth Proportional to 92,010.60, 137,808.54 and 54,996.84

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Solution

The fourth proportional to 92,010.60, 137,808.54 and 54,996.84 is: 82,371.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,010.60 : 137,808.54 = 54,996.84 : x
  2. Step 2: Convert to fraction form
    92,010.60/137,808.54 = 54,996.84/x
  3. Step 3: Cross multiply
    92,010.60x = 137,808.54 × 54,996.84
  4. Step 4: Simplify right side
    92,010.60x = 7,579,034,225.01
  5. Step 5: Solve for x
    x = 7,579,034,225.01/92,010.60
  6. Step 6: Final answer
    x = 82,371.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.