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Finding the Fourth Proportional to 253,167.70, 379,419.35 and 186,294.70

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Solution

The fourth proportional to 253,167.70, 379,419.35 and 186,294.70 is: 279,197.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,167.70 : 379,419.35 = 186,294.70 : x
  2. Step 2: Convert to fraction form
    253,167.70/379,419.35 = 186,294.70/x
  3. Step 3: Cross multiply
    253,167.70x = 379,419.35 × 186,294.70
  4. Step 4: Simplify right side
    253,167.70x = 70,683,813,982.45
  5. Step 5: Solve for x
    x = 70,683,813,982.45/253,167.70
  6. Step 6: Final answer
    x = 279,197.60

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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.