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Finding the Fourth Proportional to 72,126.69, 108,179.08 and 25,368.63

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Solution

The fourth proportional to 72,126.69, 108,179.08 and 25,368.63 is: 38,049.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,126.69 : 108,179.08 = 25,368.63 : x
  2. Step 2: Convert to fraction form
    72,126.69/108,179.08 = 25,368.63/x
  3. Step 3: Cross multiply
    72,126.69x = 108,179.08 × 25,368.63
  4. Step 4: Simplify right side
    72,126.69x = 2,744,355,054.26
  5. Step 5: Solve for x
    x = 2,744,355,054.26/72,126.69
  6. Step 6: Final answer
    x = 38,049.09

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.