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Finding the Fourth Proportional to 216,862.01, 325,309.44 and 67,117.44

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Solution

The fourth proportional to 216,862.01, 325,309.44 and 67,117.44 is: 100,681.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,862.01 : 325,309.44 = 67,117.44 : x
  2. Step 2: Convert to fraction form
    216,862.01/325,309.44 = 67,117.44/x
  3. Step 3: Cross multiply
    216,862.01x = 325,309.44 × 67,117.44
  4. Step 4: Simplify right side
    216,862.01x = 21,833,936,820.63
  5. Step 5: Solve for x
    x = 21,833,936,820.63/216,862.01
  6. Step 6: Final answer
    x = 100,681.25

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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.