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Finding the Fourth Proportional to 271,913.20, 407,869.80 and 94,401.70

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Solution

The fourth proportional to 271,913.20, 407,869.80 and 94,401.70 is: 141,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,913.20 : 407,869.80 = 94,401.70 : x
  2. Step 2: Convert to fraction form
    271,913.20/407,869.80 = 94,401.70/x
  3. Step 3: Cross multiply
    271,913.20x = 407,869.80 × 94,401.70
  4. Step 4: Simplify right side
    271,913.20x = 38,503,602,498.66
  5. Step 5: Solve for x
    x = 38,503,602,498.66/271,913.20
  6. Step 6: Final answer
    x = 141,602.55

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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.