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Finding the Fourth Proportional to 103,676.68, 155,492.46 and 40,476.46

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Solution

The fourth proportional to 103,676.68, 155,492.46 and 40,476.46 is: 60,705.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,676.68 : 155,492.46 = 40,476.46 : x
  2. Step 2: Convert to fraction form
    103,676.68/155,492.46 = 40,476.46/x
  3. Step 3: Cross multiply
    103,676.68x = 155,492.46 × 40,476.46
  4. Step 4: Simplify right side
    103,676.68x = 6,293,784,337.49
  5. Step 5: Solve for x
    x = 6,293,784,337.49/103,676.68
  6. Step 6: Final answer
    x = 60,705.88

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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.