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Finding the Fourth Proportional to 238,259.88, 328,872.42 and 153,376.88

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Solution

The fourth proportional to 238,259.88, 328,872.42 and 153,376.88 is: 211,707.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,259.88 : 328,872.42 = 153,376.88 : x
  2. Step 2: Convert to fraction form
    238,259.88/328,872.42 = 153,376.88/x
  3. Step 3: Cross multiply
    238,259.88x = 328,872.42 × 153,376.88
  4. Step 4: Simplify right side
    238,259.88x = 50,441,424,053.29
  5. Step 5: Solve for x
    x = 50,441,424,053.29/238,259.88
  6. Step 6: Final answer
    x = 211,707.59

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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.