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Finding the Fourth Proportional to 68,446.40, 102,592.80 and 35,153.60

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Solution

The fourth proportional to 68,446.40, 102,592.80 and 35,153.60 is: 52,690.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,446.40 : 102,592.80 = 35,153.60 : x
  2. Step 2: Convert to fraction form
    68,446.40/102,592.80 = 35,153.60/x
  3. Step 3: Cross multiply
    68,446.40x = 102,592.80 × 35,153.60
  4. Step 4: Simplify right side
    68,446.40x = 3,606,506,254.08
  5. Step 5: Solve for x
    x = 3,606,506,254.08/68,446.40
  6. Step 6: Final answer
    x = 52,690.96

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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.