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Finding the Fourth Proportional to 98,677.44, 136,172.16 and 53,965.44

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Solution

The fourth proportional to 98,677.44, 136,172.16 and 53,965.44 is: 74,470.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,677.44 : 136,172.16 = 53,965.44 : x
  2. Step 2: Convert to fraction form
    98,677.44/136,172.16 = 53,965.44/x
  3. Step 3: Cross multiply
    98,677.44x = 136,172.16 × 53,965.44
  4. Step 4: Simplify right side
    98,677.44x = 7,348,590,530.15
  5. Step 5: Solve for x
    x = 7,348,590,530.15/98,677.44
  6. Step 6: Final answer
    x = 74,470.83

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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.