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Finding the Fourth Proportional to 146,764.80, 220,147.20 and 94,276.80

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Solution

The fourth proportional to 146,764.80, 220,147.20 and 94,276.80 is: 141,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,764.80 : 220,147.20 = 94,276.80 : x
  2. Step 2: Convert to fraction form
    146,764.80/220,147.20 = 94,276.80/x
  3. Step 3: Cross multiply
    146,764.80x = 220,147.20 × 94,276.80
  4. Step 4: Simplify right side
    146,764.80x = 20,754,773,544.96
  5. Step 5: Solve for x
    x = 20,754,773,544.96/146,764.80
  6. Step 6: Final answer
    x = 141,415.20

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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.