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Finding the Fourth Proportional to 73,277.34, 109,842.14 and 28,886.90

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Solution

The fourth proportional to 73,277.34, 109,842.14 and 28,886.90 is: 43,301.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,277.34 : 109,842.14 = 28,886.90 : x
  2. Step 2: Convert to fraction form
    73,277.34/109,842.14 = 28,886.90/x
  3. Step 3: Cross multiply
    73,277.34x = 109,842.14 × 28,886.90
  4. Step 4: Simplify right side
    73,277.34x = 3,172,998,913.97
  5. Step 5: Solve for x
    x = 3,172,998,913.97/73,277.34
  6. Step 6: Final answer
    x = 43,301.23

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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.