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Finding the Fourth Proportional to 68,929.30, 103,316.44 and 35,100.40

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Solution

The fourth proportional to 68,929.30, 103,316.44 and 35,100.40 is: 52,611.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,929.30 : 103,316.44 = 35,100.40 : x
  2. Step 2: Convert to fraction form
    68,929.30/103,316.44 = 35,100.40/x
  3. Step 3: Cross multiply
    68,929.30x = 103,316.44 × 35,100.40
  4. Step 4: Simplify right side
    68,929.30x = 3,626,448,370.58
  5. Step 5: Solve for x
    x = 3,626,448,370.58/68,929.30
  6. Step 6: Final answer
    x = 52,611.13

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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.