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Finding the Fourth Proportional to 72,773.28, 108,957.45 and 37,157.67

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Solution

The fourth proportional to 72,773.28, 108,957.45 and 37,157.67 is: 55,633.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,773.28 : 108,957.45 = 37,157.67 : x
  2. Step 2: Convert to fraction form
    72,773.28/108,957.45 = 37,157.67/x
  3. Step 3: Cross multiply
    72,773.28x = 108,957.45 × 37,157.67
  4. Step 4: Simplify right side
    72,773.28x = 4,048,604,971.14
  5. Step 5: Solve for x
    x = 4,048,604,971.14/72,773.28
  6. Step 6: Final answer
    x = 55,633.12

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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.