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Finding the Fourth Proportional to 73,970.92, 110,983.62 and 53,077.72

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Solution

The fourth proportional to 73,970.92, 110,983.62 and 53,077.72 is: 79,636.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,970.92 : 110,983.62 = 53,077.72 : x
  2. Step 2: Convert to fraction form
    73,970.92/110,983.62 = 53,077.72/x
  3. Step 3: Cross multiply
    73,970.92x = 110,983.62 × 53,077.72
  4. Step 4: Simplify right side
    73,970.92x = 5,890,757,506.95
  5. Step 5: Solve for x
    x = 5,890,757,506.95/73,970.92
  6. Step 6: Final answer
    x = 79,636.13

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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.