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Finding the Fourth Proportional to 238,661.94, 329,271.53 and 147,985.28

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Solution

The fourth proportional to 238,661.94, 329,271.53 and 147,985.28 is: 204,168.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,661.94 : 329,271.53 = 147,985.28 : x
  2. Step 2: Convert to fraction form
    238,661.94/329,271.53 = 147,985.28/x
  3. Step 3: Cross multiply
    238,661.94x = 329,271.53 × 147,985.28
  4. Step 4: Simplify right side
    238,661.94x = 48,727,339,243.98
  5. Step 5: Solve for x
    x = 48,727,339,243.98/238,661.94
  6. Step 6: Final answer
    x = 204,168.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.