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Finding the Fourth Proportional to 97,459.80, 146,189.70 and 47,571.90

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Solution

The fourth proportional to 97,459.80, 146,189.70 and 47,571.90 is: 71,357.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,459.80 : 146,189.70 = 47,571.90 : x
  2. Step 2: Convert to fraction form
    97,459.80/146,189.70 = 47,571.90/x
  3. Step 3: Cross multiply
    97,459.80x = 146,189.70 × 47,571.90
  4. Step 4: Simplify right side
    97,459.80x = 6,954,521,789.43
  5. Step 5: Solve for x
    x = 6,954,521,789.43/97,459.80
  6. Step 6: Final answer
    x = 71,357.85

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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.