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Finding the Fourth Proportional to 73,344.48, 110,002.68 and 20,741.28

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Solution

The fourth proportional to 73,344.48, 110,002.68 and 20,741.28 is: 31,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,344.48 : 110,002.68 = 20,741.28 : x
  2. Step 2: Convert to fraction form
    73,344.48/110,002.68 = 20,741.28/x
  3. Step 3: Cross multiply
    73,344.48x = 110,002.68 × 20,741.28
  4. Step 4: Simplify right side
    73,344.48x = 2,281,596,386.63
  5. Step 5: Solve for x
    x = 2,281,596,386.63/73,344.48
  6. Step 6: Final answer
    x = 31,107.95

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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.