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Finding the Fourth Proportional to 106,851.59, 159,869.33 and 93,425.44

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Solution

The fourth proportional to 106,851.59, 159,869.33 and 93,425.44 is: 139,781.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,851.59 : 159,869.33 = 93,425.44 : x
  2. Step 2: Convert to fraction form
    106,851.59/159,869.33 = 93,425.44/x
  3. Step 3: Cross multiply
    106,851.59x = 159,869.33 × 93,425.44
  4. Step 4: Simplify right side
    106,851.59x = 14,935,862,497.76
  5. Step 5: Solve for x
    x = 14,935,862,497.76/106,851.59
  6. Step 6: Final answer
    x = 139,781.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.