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Finding the Fourth Proportional to 271,903.60, 407,855.40 and 94,428.55

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Solution

The fourth proportional to 271,903.60, 407,855.40 and 94,428.55 is: 141,642.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,903.60 : 407,855.40 = 94,428.55 : x
  2. Step 2: Convert to fraction form
    271,903.60/407,855.40 = 94,428.55/x
  3. Step 3: Cross multiply
    271,903.60x = 407,855.40 × 94,428.55
  4. Step 4: Simplify right side
    271,903.60x = 38,513,194,031.67
  5. Step 5: Solve for x
    x = 38,513,194,031.67/271,903.60
  6. Step 6: Final answer
    x = 141,642.83

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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.