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Finding the Fourth Proportional to 55,986.77, 83,570.53 and 49,343.99

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Solution

The fourth proportional to 55,986.77, 83,570.53 and 49,343.99 is: 73,654.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,986.77 : 83,570.53 = 49,343.99 : x
  2. Step 2: Convert to fraction form
    55,986.77/83,570.53 = 49,343.99/x
  3. Step 3: Cross multiply
    55,986.77x = 83,570.53 × 49,343.99
  4. Step 4: Simplify right side
    55,986.77x = 4,123,703,396.61
  5. Step 5: Solve for x
    x = 4,123,703,396.61/55,986.77
  6. Step 6: Final answer
    x = 73,654.96

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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.