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Finding the Fourth Proportional to 369,722.76, 554,652.72 and 117,067.20

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Solution

The fourth proportional to 369,722.76, 554,652.72 and 117,067.20 is: 175,622.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,722.76 : 554,652.72 = 117,067.20 : x
  2. Step 2: Convert to fraction form
    369,722.76/554,652.72 = 117,067.20/x
  3. Step 3: Cross multiply
    369,722.76x = 554,652.72 × 117,067.20
  4. Step 4: Simplify right side
    369,722.76x = 64,931,640,902.78
  5. Step 5: Solve for x
    x = 64,931,640,902.78/369,722.76
  6. Step 6: Final answer
    x = 175,622.51

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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.