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Finding the Fourth Proportional to 216,862.41, 325,310.01 and 67,117.84

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Solution

The fourth proportional to 216,862.41, 325,310.01 and 67,117.84 is: 100,681.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,862.41 : 325,310.01 = 67,117.84 : x
  2. Step 2: Convert to fraction form
    216,862.41/325,310.01 = 67,117.84/x
  3. Step 3: Cross multiply
    216,862.41x = 325,310.01 × 67,117.84
  4. Step 4: Simplify right side
    216,862.41x = 21,834,105,201.58
  5. Step 5: Solve for x
    x = 21,834,105,201.58/216,862.41
  6. Step 6: Final answer
    x = 100,681.84

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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.