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Finding the Fourth Proportional to 372,474, 558,798.57 and 123,156

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Solution

The fourth proportional to 372,474, 558,798.57 and 123,156 is: 184,762.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,474 : 558,798.57 = 123,156 : x
  2. Step 2: Convert to fraction form
    372,474/558,798.57 = 123,156/x
  3. Step 3: Cross multiply
    372,474x = 558,798.57 × 123,156
  4. Step 4: Simplify right side
    372,474x = 68,819,396,686.92
  5. Step 5: Solve for x
    x = 68,819,396,686.92/372,474
  6. Step 6: Final answer
    x = 184,762.95

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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.