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Finding the Fourth Proportional to 72,602.26, 108,907.48 and 25,855.14

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Solution

The fourth proportional to 72,602.26, 108,907.48 and 25,855.14 is: 38,784.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,602.26 : 108,907.48 = 25,855.14 : x
  2. Step 2: Convert to fraction form
    72,602.26/108,907.48 = 25,855.14/x
  3. Step 3: Cross multiply
    72,602.26x = 108,907.48 × 25,855.14
  4. Step 4: Simplify right side
    72,602.26x = 2,815,818,142.45
  5. Step 5: Solve for x
    x = 2,815,818,142.45/72,602.26
  6. Step 6: Final answer
    x = 38,784.17

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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.