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Finding the Fourth Proportional to 245,732.38, 368,598.30 and 68,239.30

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Solution

The fourth proportional to 245,732.38, 368,598.30 and 68,239.30 is: 102,358.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,732.38 : 368,598.30 = 68,239.30 : x
  2. Step 2: Convert to fraction form
    245,732.38/368,598.30 = 68,239.30/x
  3. Step 3: Cross multiply
    245,732.38x = 368,598.30 × 68,239.30
  4. Step 4: Simplify right side
    245,732.38x = 25,152,889,973.19
  5. Step 5: Solve for x
    x = 25,152,889,973.19/245,732.38
  6. Step 6: Final answer
    x = 102,358.88

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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.