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Finding the Fourth Proportional to 68,862.32, 103,072.03 and 35,536.99

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Solution

The fourth proportional to 68,862.32, 103,072.03 and 35,536.99 is: 53,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,862.32 : 103,072.03 = 35,536.99 : x
  2. Step 2: Convert to fraction form
    68,862.32/103,072.03 = 35,536.99/x
  3. Step 3: Cross multiply
    68,862.32x = 103,072.03 × 35,536.99
  4. Step 4: Simplify right side
    68,862.32x = 3,662,869,699.39
  5. Step 5: Solve for x
    x = 3,662,869,699.39/68,862.32
  6. Step 6: Final answer
    x = 53,191.20

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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.