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Finding the Fourth Proportional to 245,535.50, 368,302.20 and 68,042

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Solution

The fourth proportional to 245,535.50, 368,302.20 and 68,042 is: 102,062.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,535.50 : 368,302.20 = 68,042 : x
  2. Step 2: Convert to fraction form
    245,535.50/368,302.20 = 68,042/x
  3. Step 3: Cross multiply
    245,535.50x = 368,302.20 × 68,042
  4. Step 4: Simplify right side
    245,535.50x = 25,060,018,292.40
  5. Step 5: Solve for x
    x = 25,060,018,292.40/245,535.50
  6. Step 6: Final answer
    x = 102,062.71

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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.