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Finding the Fourth Proportional to 238,551.70, 329,232.45 and 153,914.98

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Solution

The fourth proportional to 238,551.70, 329,232.45 and 153,914.98 is: 212,422.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,551.70 : 329,232.45 = 153,914.98 : x
  2. Step 2: Convert to fraction form
    238,551.70/329,232.45 = 153,914.98/x
  3. Step 3: Cross multiply
    238,551.70x = 329,232.45 × 153,914.98
  4. Step 4: Simplify right side
    238,551.70x = 50,673,805,957.10
  5. Step 5: Solve for x
    x = 50,673,805,957.10/238,551.70
  6. Step 6: Final answer
    x = 212,422.74

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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.