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Finding the Fourth Proportional to 73,092, 109,666.40 and 28,710.88

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Solution

The fourth proportional to 73,092, 109,666.40 and 28,710.88 is: 43,077.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,092 : 109,666.40 = 28,710.88 : x
  2. Step 2: Convert to fraction form
    73,092/109,666.40 = 28,710.88/x
  3. Step 3: Cross multiply
    73,092x = 109,666.40 × 28,710.88
  4. Step 4: Simplify right side
    73,092x = 3,148,618,850.43
  5. Step 5: Solve for x
    x = 3,148,618,850.43/73,092
  6. Step 6: Final answer
    x = 43,077.48

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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.