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Finding the Fourth Proportional to 128,541.68, 192,810.44 and 35,047.44

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Solution

The fourth proportional to 128,541.68, 192,810.44 and 35,047.44 is: 52,570.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,541.68 : 192,810.44 = 35,047.44 : x
  2. Step 2: Convert to fraction form
    128,541.68/192,810.44 = 35,047.44/x
  3. Step 3: Cross multiply
    128,541.68x = 192,810.44 × 35,047.44
  4. Step 4: Simplify right side
    128,541.68x = 6,757,512,327.27
  5. Step 5: Solve for x
    x = 6,757,512,327.27/128,541.68
  6. Step 6: Final answer
    x = 52,570.59

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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.