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Finding the Fourth Proportional to 73,318.96, 109,978.44 and 26,556.40

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Solution

The fourth proportional to 73,318.96, 109,978.44 and 26,556.40 is: 39,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,318.96 : 109,978.44 = 26,556.40 : x
  2. Step 2: Convert to fraction form
    73,318.96/109,978.44 = 26,556.40/x
  3. Step 3: Cross multiply
    73,318.96x = 109,978.44 × 26,556.40
  4. Step 4: Simplify right side
    73,318.96x = 2,920,631,444.02
  5. Step 5: Solve for x
    x = 2,920,631,444.02/73,318.96
  6. Step 6: Final answer
    x = 39,834.60

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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.