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Finding the Fourth Proportional to 52,130.01, 78,134.52 and 23,990.99

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Solution

The fourth proportional to 52,130.01, 78,134.52 and 23,990.99 is: 35,958.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,130.01 : 78,134.52 = 23,990.99 : x
  2. Step 2: Convert to fraction form
    52,130.01/78,134.52 = 23,990.99/x
  3. Step 3: Cross multiply
    52,130.01x = 78,134.52 × 23,990.99
  4. Step 4: Simplify right side
    52,130.01x = 1,874,524,187.27
  5. Step 5: Solve for x
    x = 1,874,524,187.27/52,130.01
  6. Step 6: Final answer
    x = 35,958.64

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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.