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Finding the Fourth Proportional to 68,862.84, 103,211.14 and 35,564.76

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Solution

The fourth proportional to 68,862.84, 103,211.14 and 35,564.76 is: 53,304.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,862.84 : 103,211.14 = 35,564.76 : x
  2. Step 2: Convert to fraction form
    68,862.84/103,211.14 = 35,564.76/x
  3. Step 3: Cross multiply
    68,862.84x = 103,211.14 × 35,564.76
  4. Step 4: Simplify right side
    68,862.84x = 3,670,679,423.43
  5. Step 5: Solve for x
    x = 3,670,679,423.43/68,862.84
  6. Step 6: Final answer
    x = 53,304.21

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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.