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Finding the Fourth Proportional to 144,394.51, 199,258.59 and 79,859.50

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Solution

The fourth proportional to 144,394.51, 199,258.59 and 79,859.50 is: 110,202.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,394.51 : 199,258.59 = 79,859.50 : x
  2. Step 2: Convert to fraction form
    144,394.51/199,258.59 = 79,859.50/x
  3. Step 3: Cross multiply
    144,394.51x = 199,258.59 × 79,859.50
  4. Step 4: Simplify right side
    144,394.51x = 15,912,691,368.11
  5. Step 5: Solve for x
    x = 15,912,691,368.11/144,394.51
  6. Step 6: Final answer
    x = 110,202.88

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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.