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Finding the Fourth Proportional to 238,188.10, 328,687.21 and 141,395.98

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Solution

The fourth proportional to 238,188.10, 328,687.21 and 141,395.98 is: 195,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,188.10 : 328,687.21 = 141,395.98 : x
  2. Step 2: Convert to fraction form
    238,188.10/328,687.21 = 141,395.98/x
  3. Step 3: Cross multiply
    238,188.10x = 328,687.21 × 141,395.98
  4. Step 4: Simplify right side
    238,188.10x = 46,475,050,171.42
  5. Step 5: Solve for x
    x = 46,475,050,171.42/238,188.10
  6. Step 6: Final answer
    x = 195,119.11

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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.