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Finding the Fourth Proportional to 68,955.20, 103,432.80 and 24,583.40

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Solution

The fourth proportional to 68,955.20, 103,432.80 and 24,583.40 is: 36,875.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,955.20 : 103,432.80 = 24,583.40 : x
  2. Step 2: Convert to fraction form
    68,955.20/103,432.80 = 24,583.40/x
  3. Step 3: Cross multiply
    68,955.20x = 103,432.80 × 24,583.40
  4. Step 4: Simplify right side
    68,955.20x = 2,542,729,895.52
  5. Step 5: Solve for x
    x = 2,542,729,895.52/68,955.20
  6. Step 6: Final answer
    x = 36,875.10

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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.