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Finding the Fourth Proportional to 78,894.01, 108,873.19 and 43,084.02

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Solution

The fourth proportional to 78,894.01, 108,873.19 and 43,084.02 is: 59,455.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,894.01 : 108,873.19 = 43,084.02 : x
  2. Step 2: Convert to fraction form
    78,894.01/108,873.19 = 43,084.02/x
  3. Step 3: Cross multiply
    78,894.01x = 108,873.19 × 43,084.02
  4. Step 4: Simplify right side
    78,894.01x = 4,690,694,695.42
  5. Step 5: Solve for x
    x = 4,690,694,695.42/78,894.01
  6. Step 6: Final answer
    x = 59,455.65

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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.