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Finding the Fourth Proportional to 118,382.97, 163,373.47 and 68,082.01

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Solution

The fourth proportional to 118,382.97, 163,373.47 and 68,082.01 is: 93,956.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,382.97 : 163,373.47 = 68,082.01 : x
  2. Step 2: Convert to fraction form
    118,382.97/163,373.47 = 68,082.01/x
  3. Step 3: Cross multiply
    118,382.97x = 163,373.47 × 68,082.01
  4. Step 4: Simplify right side
    118,382.97x = 11,122,793,877.86
  5. Step 5: Solve for x
    x = 11,122,793,877.86/118,382.97
  6. Step 6: Final answer
    x = 93,956.03

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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.