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Finding the Fourth Proportional to 58,991.73, 88,041.90 and 54,992.07

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Solution

The fourth proportional to 58,991.73, 88,041.90 and 54,992.07 is: 82,072.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,991.73 : 88,041.90 = 54,992.07 : x
  2. Step 2: Convert to fraction form
    58,991.73/88,041.90 = 54,992.07/x
  3. Step 3: Cross multiply
    58,991.73x = 88,041.90 × 54,992.07
  4. Step 4: Simplify right side
    58,991.73x = 4,841,606,327.73
  5. Step 5: Solve for x
    x = 4,841,606,327.73/58,991.73
  6. Step 6: Final answer
    x = 82,072.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.