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Finding the Fourth Proportional to 68,128.73, 94,034.33 and 52,784.92

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Solution

The fourth proportional to 68,128.73, 94,034.33 and 52,784.92 is: 72,856.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,128.73 : 94,034.33 = 52,784.92 : x
  2. Step 2: Convert to fraction form
    68,128.73/94,034.33 = 52,784.92/x
  3. Step 3: Cross multiply
    68,128.73x = 94,034.33 × 52,784.92
  4. Step 4: Simplify right side
    68,128.73x = 4,963,594,586.30
  5. Step 5: Solve for x
    x = 4,963,594,586.30/68,128.73
  6. Step 6: Final answer
    x = 72,856.11

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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.