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Finding the Fourth Proportional to 68,416.84, 102,625.26 and 49,815.26

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Solution

The fourth proportional to 68,416.84, 102,625.26 and 49,815.26 is: 74,722.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,416.84 : 102,625.26 = 49,815.26 : x
  2. Step 2: Convert to fraction form
    68,416.84/102,625.26 = 49,815.26/x
  3. Step 3: Cross multiply
    68,416.84x = 102,625.26 × 49,815.26
  4. Step 4: Simplify right side
    68,416.84x = 5,112,304,009.47
  5. Step 5: Solve for x
    x = 5,112,304,009.47/68,416.84
  6. Step 6: Final answer
    x = 74,722.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.