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Finding the Fourth Proportional to 291,756.39, 437,634.59 and 92,092.35

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Solution

The fourth proportional to 291,756.39, 437,634.59 and 92,092.35 is: 138,138.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,756.39 : 437,634.59 = 92,092.35 : x
  2. Step 2: Convert to fraction form
    291,756.39/437,634.59 = 92,092.35/x
  3. Step 3: Cross multiply
    291,756.39x = 437,634.59 × 92,092.35
  4. Step 4: Simplify right side
    291,756.39x = 40,302,797,373.92
  5. Step 5: Solve for x
    x = 40,302,797,373.92/291,756.39
  6. Step 6: Final answer
    x = 138,138.53

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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.