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Finding the Fourth Proportional to 123,507.40, 185,309.70 and 48,614.80

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Solution

The fourth proportional to 123,507.40, 185,309.70 and 48,614.80 is: 72,941.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,507.40 : 185,309.70 = 48,614.80 : x
  2. Step 2: Convert to fraction form
    123,507.40/185,309.70 = 48,614.80/x
  3. Step 3: Cross multiply
    123,507.40x = 185,309.70 × 48,614.80
  4. Step 4: Simplify right side
    123,507.40x = 9,008,794,003.56
  5. Step 5: Solve for x
    x = 9,008,794,003.56/123,507.40
  6. Step 6: Final answer
    x = 72,941.33

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1.5x scale

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.