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Finding the Fourth Proportional to 94,624.64, 141,978.80 and 50,240.64

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Solution

The fourth proportional to 94,624.64, 141,978.80 and 50,240.64 is: 75,383.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,624.64 : 141,978.80 = 50,240.64 : x
  2. Step 2: Convert to fraction form
    94,624.64/141,978.80 = 50,240.64/x
  3. Step 3: Cross multiply
    94,624.64x = 141,978.80 × 50,240.64
  4. Step 4: Simplify right side
    94,624.64x = 7,133,105,778.43
  5. Step 5: Solve for x
    x = 7,133,105,778.43/94,624.64
  6. Step 6: Final answer
    x = 75,383.17

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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.