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Finding the Fourth Proportional to 237,480.68, 327,720.89 and 128,583.16

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Solution

The fourth proportional to 237,480.68, 327,720.89 and 128,583.16 is: 177,443.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,480.68 : 327,720.89 = 128,583.16 : x
  2. Step 2: Convert to fraction form
    237,480.68/327,720.89 = 128,583.16/x
  3. Step 3: Cross multiply
    237,480.68x = 327,720.89 × 128,583.16
  4. Step 4: Simplify right side
    237,480.68x = 42,139,387,136.37
  5. Step 5: Solve for x
    x = 42,139,387,136.37/237,480.68
  6. Step 6: Final answer
    x = 177,443.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.