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Finding the Fourth Proportional to 363,956.10, 545,934.15 and 127,274.10

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Solution

The fourth proportional to 363,956.10, 545,934.15 and 127,274.10 is: 190,911.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,956.10 : 545,934.15 = 127,274.10 : x
  2. Step 2: Convert to fraction form
    363,956.10/545,934.15 = 127,274.10/x
  3. Step 3: Cross multiply
    363,956.10x = 545,934.15 × 127,274.10
  4. Step 4: Simplify right side
    363,956.10x = 69,483,277,600.52
  5. Step 5: Solve for x
    x = 69,483,277,600.52/363,956.10
  6. Step 6: Final answer
    x = 190,911.15

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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.