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Finding the Fourth Proportional to 109,938.48, 164,797.08 and 43,425.78

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Solution

The fourth proportional to 109,938.48, 164,797.08 and 43,425.78 is: 65,094.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,938.48 : 164,797.08 = 43,425.78 : x
  2. Step 2: Convert to fraction form
    109,938.48/164,797.08 = 43,425.78/x
  3. Step 3: Cross multiply
    109,938.48x = 164,797.08 × 43,425.78
  4. Step 4: Simplify right side
    109,938.48x = 7,156,441,740.72
  5. Step 5: Solve for x
    x = 7,156,441,740.72/109,938.48
  6. Step 6: Final answer
    x = 65,094.97

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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.