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Finding the Fourth Proportional to 68,802.47, 103,213.97 and 24,425.51

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Solution

The fourth proportional to 68,802.47, 103,213.97 and 24,425.51 is: 36,641.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,802.47 : 103,213.97 = 24,425.51 : x
  2. Step 2: Convert to fraction form
    68,802.47/103,213.97 = 24,425.51/x
  3. Step 3: Cross multiply
    68,802.47x = 103,213.97 × 24,425.51
  4. Step 4: Simplify right side
    68,802.47x = 2,521,054,175.47
  5. Step 5: Solve for x
    x = 2,521,054,175.47/68,802.47
  6. Step 6: Final answer
    x = 36,641.91

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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.