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Finding the Fourth Proportional to 118,760.94, 163,892.75 and 67,772.65

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Solution

The fourth proportional to 118,760.94, 163,892.75 and 67,772.65 is: 93,527.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,760.94 : 163,892.75 = 67,772.65 : x
  2. Step 2: Convert to fraction form
    118,760.94/163,892.75 = 67,772.65/x
  3. Step 3: Cross multiply
    118,760.94x = 163,892.75 × 67,772.65
  4. Step 4: Simplify right side
    118,760.94x = 11,107,445,983.29
  5. Step 5: Solve for x
    x = 11,107,445,983.29/118,760.94
  6. Step 6: Final answer
    x = 93,527.77

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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.