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Finding the Fourth Proportional to 91,699.78, 137,504.31 and 32,526.58

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Solution

The fourth proportional to 91,699.78, 137,504.31 and 32,526.58 is: 48,773.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,699.78 : 137,504.31 = 32,526.58 : x
  2. Step 2: Convert to fraction form
    91,699.78/137,504.31 = 32,526.58/x
  3. Step 3: Cross multiply
    91,699.78x = 137,504.31 × 32,526.58
  4. Step 4: Simplify right side
    91,699.78x = 4,472,544,939.56
  5. Step 5: Solve for x
    x = 4,472,544,939.56/91,699.78
  6. Step 6: Final answer
    x = 48,773.78

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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.