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Finding the Fourth Proportional to 358,727.95, 538,122.90 and 92,486.20

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Solution

The fourth proportional to 358,727.95, 538,122.90 and 92,486.20 is: 138,737.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,727.95 : 538,122.90 = 92,486.20 : x
  2. Step 2: Convert to fraction form
    358,727.95/538,122.90 = 92,486.20/x
  3. Step 3: Cross multiply
    358,727.95x = 538,122.90 × 92,486.20
  4. Step 4: Simplify right side
    358,727.95x = 49,768,942,153.98
  5. Step 5: Solve for x
    x = 49,768,942,153.98/358,727.95
  6. Step 6: Final answer
    x = 138,737.29

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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.