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Finding the Fourth Proportional to 68,341.20, 102,526.20 and 21,598.80

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Solution

The fourth proportional to 68,341.20, 102,526.20 and 21,598.80 is: 32,402.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,341.20 : 102,526.20 = 21,598.80 : x
  2. Step 2: Convert to fraction form
    68,341.20/102,526.20 = 21,598.80/x
  3. Step 3: Cross multiply
    68,341.20x = 102,526.20 × 21,598.80
  4. Step 4: Simplify right side
    68,341.20x = 2,214,442,888.56
  5. Step 5: Solve for x
    x = 2,214,442,888.56/68,341.20
  6. Step 6: Final answer
    x = 32,402.75

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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.