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Finding the Fourth Proportional to 92,882.88, 139,305.69 and 45,477.54

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Solution

The fourth proportional to 92,882.88, 139,305.69 and 45,477.54 is: 68,207.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,882.88 : 139,305.69 = 45,477.54 : x
  2. Step 2: Convert to fraction form
    92,882.88/139,305.69 = 45,477.54/x
  3. Step 3: Cross multiply
    92,882.88x = 139,305.69 × 45,477.54
  4. Step 4: Simplify right side
    92,882.88x = 6,335,280,089.20
  5. Step 5: Solve for x
    x = 6,335,280,089.20/92,882.88
  6. Step 6: Final answer
    x = 68,207.19

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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.