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Finding the Fourth Proportional to 67,431.84, 93,027.12 and 49,495.92

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Solution

The fourth proportional to 67,431.84, 93,027.12 and 49,495.92 is: 68,283.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,431.84 : 93,027.12 = 49,495.92 : x
  2. Step 2: Convert to fraction form
    67,431.84/93,027.12 = 49,495.92/x
  3. Step 3: Cross multiply
    67,431.84x = 93,027.12 × 49,495.92
  4. Step 4: Simplify right side
    67,431.84x = 4,604,462,889.35
  5. Step 5: Solve for x
    x = 4,604,462,889.35/67,431.84
  6. Step 6: Final answer
    x = 68,283.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.