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Finding the Fourth Proportional to 118,730.88, 163,833.30 and 67,740.57

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Solution

The fourth proportional to 118,730.88, 163,833.30 and 67,740.57 is: 93,473.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,730.88 : 163,833.30 = 67,740.57 : x
  2. Step 2: Convert to fraction form
    118,730.88/163,833.30 = 67,740.57/x
  3. Step 3: Cross multiply
    118,730.88x = 163,833.30 × 67,740.57
  4. Step 4: Simplify right side
    118,730.88x = 11,098,161,126.98
  5. Step 5: Solve for x
    x = 11,098,161,126.98/118,730.88
  6. Step 6: Final answer
    x = 93,473.25

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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.