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Finding the Fourth Proportional to 245,624.48, 368,436.72 and 68,131.49

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Solution

The fourth proportional to 245,624.48, 368,436.72 and 68,131.49 is: 102,197.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,624.48 : 368,436.72 = 68,131.49 : x
  2. Step 2: Convert to fraction form
    245,624.48/368,436.72 = 68,131.49/x
  3. Step 3: Cross multiply
    245,624.48x = 368,436.72 × 68,131.49
  4. Step 4: Simplify right side
    245,624.48x = 25,102,142,243.77
  5. Step 5: Solve for x
    x = 25,102,142,243.77/245,624.48
  6. Step 6: Final answer
    x = 102,197.23

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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.