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Finding the Fourth Proportional to 68,587.28, 102,810.52 and 33,483.76

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Solution

The fourth proportional to 68,587.28, 102,810.52 and 33,483.76 is: 50,191.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,587.28 : 102,810.52 = 33,483.76 : x
  2. Step 2: Convert to fraction form
    68,587.28/102,810.52 = 33,483.76/x
  3. Step 3: Cross multiply
    68,587.28x = 102,810.52 × 33,483.76
  4. Step 4: Simplify right side
    68,587.28x = 3,442,482,777.16
  5. Step 5: Solve for x
    x = 3,442,482,777.16/68,587.28
  6. Step 6: Final answer
    x = 50,191.27

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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.