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Finding the Fourth Proportional to 52,992.60, 73,130.16 and 29,119.80

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Solution

The fourth proportional to 52,992.60, 73,130.16 and 29,119.80 is: 40,185.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,992.60 : 73,130.16 = 29,119.80 : x
  2. Step 2: Convert to fraction form
    52,992.60/73,130.16 = 29,119.80/x
  3. Step 3: Cross multiply
    52,992.60x = 73,130.16 × 29,119.80
  4. Step 4: Simplify right side
    52,992.60x = 2,129,535,633.17
  5. Step 5: Solve for x
    x = 2,129,535,633.17/52,992.60
  6. Step 6: Final answer
    x = 40,185.53

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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.