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Finding the Fourth Proportional to 245,731.32, 368,576.73 and 68,242.50

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Solution

The fourth proportional to 245,731.32, 368,576.73 and 68,242.50 is: 102,358.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,731.32 : 368,576.73 = 68,242.50 : x
  2. Step 2: Convert to fraction form
    245,731.32/368,576.73 = 68,242.50/x
  3. Step 3: Cross multiply
    245,731.32x = 368,576.73 × 68,242.50
  4. Step 4: Simplify right side
    245,731.32x = 25,152,597,497.03
  5. Step 5: Solve for x
    x = 25,152,597,497.03/245,731.32
  6. Step 6: Final answer
    x = 102,358.13

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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.