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Finding the Fourth Proportional to 149,170.54, 223,460.53 and 130,471.69

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Solution

The fourth proportional to 149,170.54, 223,460.53 and 130,471.69 is: 195,449.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,170.54 : 223,460.53 = 130,471.69 : x
  2. Step 2: Convert to fraction form
    149,170.54/223,460.53 = 130,471.69/x
  3. Step 3: Cross multiply
    149,170.54x = 223,460.53 × 130,471.69
  4. Step 4: Simplify right side
    149,170.54x = 29,155,272,997.40
  5. Step 5: Solve for x
    x = 29,155,272,997.40/149,170.54
  6. Step 6: Final answer
    x = 195,449.27

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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.