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Finding the Fourth Proportional to 153,958.40, 230,937.60 and 145,356.80

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Solution

The fourth proportional to 153,958.40, 230,937.60 and 145,356.80 is: 218,035.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,958.40 : 230,937.60 = 145,356.80 : x
  2. Step 2: Convert to fraction form
    153,958.40/230,937.60 = 145,356.80/x
  3. Step 3: Cross multiply
    153,958.40x = 230,937.60 × 145,356.80
  4. Step 4: Simplify right side
    153,958.40x = 33,568,350,535.68
  5. Step 5: Solve for x
    x = 33,568,350,535.68/153,958.40
  6. Step 6: Final answer
    x = 218,035.20

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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.