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Finding the Fourth Proportional to 72,362.77, 108,543.17 and 32,371.18

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Solution

The fourth proportional to 72,362.77, 108,543.17 and 32,371.18 is: 48,556.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,362.77 : 108,543.17 = 32,371.18 : x
  2. Step 2: Convert to fraction form
    72,362.77/108,543.17 = 32,371.18/x
  3. Step 3: Cross multiply
    72,362.77x = 108,543.17 × 32,371.18
  4. Step 4: Simplify right side
    72,362.77x = 3,513,670,303.41
  5. Step 5: Solve for x
    x = 3,513,670,303.41/72,362.77
  6. Step 6: Final answer
    x = 48,556.33

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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.