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Finding the Fourth Proportional to 145,426.92, 218,134.03 and 45,584.84

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Solution

The fourth proportional to 145,426.92, 218,134.03 and 45,584.84 is: 68,375.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,426.92 : 218,134.03 = 45,584.84 : x
  2. Step 2: Convert to fraction form
    145,426.92/218,134.03 = 45,584.84/x
  3. Step 3: Cross multiply
    145,426.92x = 218,134.03 × 45,584.84
  4. Step 4: Simplify right side
    145,426.92x = 9,943,604,856.11
  5. Step 5: Solve for x
    x = 9,943,604,856.11/145,426.92
  6. Step 6: Final answer
    x = 68,375.27

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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.