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Finding the Fourth Proportional to 72,483.34, 108,698.96 and 25,085.57

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Solution

The fourth proportional to 72,483.34, 108,698.96 and 25,085.57 is: 37,619.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,483.34 : 108,698.96 = 25,085.57 : x
  2. Step 2: Convert to fraction form
    72,483.34/108,698.96 = 25,085.57/x
  3. Step 3: Cross multiply
    72,483.34x = 108,698.96 × 25,085.57
  4. Step 4: Simplify right side
    72,483.34x = 2,726,775,098.26
  5. Step 5: Solve for x
    x = 2,726,775,098.26/72,483.34
  6. Step 6: Final answer
    x = 37,619.33

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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.