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Finding the Fourth Proportional to 72,406.52, 108,583.14 and 25,009.58

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Solution

The fourth proportional to 72,406.52, 108,583.14 and 25,009.58 is: 37,505.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,406.52 : 108,583.14 = 25,009.58 : x
  2. Step 2: Convert to fraction form
    72,406.52/108,583.14 = 25,009.58/x
  3. Step 3: Cross multiply
    72,406.52x = 108,583.14 × 25,009.58
  4. Step 4: Simplify right side
    72,406.52x = 2,715,618,726.48
  5. Step 5: Solve for x
    x = 2,715,618,726.48/72,406.52
  6. Step 6: Final answer
    x = 37,505.17

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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.