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Finding the Fourth Proportional to 65,850.84, 90,849.65 and 43,202.43

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Solution

The fourth proportional to 65,850.84, 90,849.65 and 43,202.43 is: 59,603.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,850.84 : 90,849.65 = 43,202.43 : x
  2. Step 2: Convert to fraction form
    65,850.84/90,849.65 = 43,202.43/x
  3. Step 3: Cross multiply
    65,850.84x = 90,849.65 × 43,202.43
  4. Step 4: Simplify right side
    65,850.84x = 3,924,925,428.64
  5. Step 5: Solve for x
    x = 3,924,925,428.64/65,850.84
  6. Step 6: Final answer
    x = 59,603.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.