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Finding the Fourth Proportional to 93,083.40, 139,625.10 and 68,297.40

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Solution

The fourth proportional to 93,083.40, 139,625.10 and 68,297.40 is: 102,446.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,083.40 : 139,625.10 = 68,297.40 : x
  2. Step 2: Convert to fraction form
    93,083.40/139,625.10 = 68,297.40/x
  3. Step 3: Cross multiply
    93,083.40x = 139,625.10 × 68,297.40
  4. Step 4: Simplify right side
    93,083.40x = 9,536,031,304.74
  5. Step 5: Solve for x
    x = 9,536,031,304.74/93,083.40
  6. Step 6: Final answer
    x = 102,446.10

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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.