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Finding the Fourth Proportional to 72,008.76, 107,898.93 and 52,194.54

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Solution

The fourth proportional to 72,008.76, 107,898.93 and 52,194.54 is: 78,209.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,008.76 : 107,898.93 = 52,194.54 : x
  2. Step 2: Convert to fraction form
    72,008.76/107,898.93 = 52,194.54/x
  3. Step 3: Cross multiply
    72,008.76x = 107,898.93 × 52,194.54
  4. Step 4: Simplify right side
    72,008.76x = 5,631,735,017.84
  5. Step 5: Solve for x
    x = 5,631,735,017.84/72,008.76
  6. Step 6: Final answer
    x = 78,209.03

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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.