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Finding the Fourth Proportional to 238,335.72, 328,823.20 and 134,955.82

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Solution

The fourth proportional to 238,335.72, 328,823.20 and 134,955.82 is: 186,193.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,335.72 : 328,823.20 = 134,955.82 : x
  2. Step 2: Convert to fraction form
    238,335.72/328,823.20 = 134,955.82/x
  3. Step 3: Cross multiply
    238,335.72x = 328,823.20 × 134,955.82
  4. Step 4: Simplify right side
    238,335.72x = 44,376,604,411.62
  5. Step 5: Solve for x
    x = 44,376,604,411.62/238,335.72
  6. Step 6: Final answer
    x = 186,193.68

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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.