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Finding the Fourth Proportional to 172,173.57, 237,531.19 and 99,563.03

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Solution

The fourth proportional to 172,173.57, 237,531.19 and 99,563.03 is: 137,357.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,173.57 : 237,531.19 = 99,563.03 : x
  2. Step 2: Convert to fraction form
    172,173.57/237,531.19 = 99,563.03/x
  3. Step 3: Cross multiply
    172,173.57x = 237,531.19 × 99,563.03
  4. Step 4: Simplify right side
    172,173.57x = 23,649,324,498.09
  5. Step 5: Solve for x
    x = 23,649,324,498.09/172,173.57
  6. Step 6: Final answer
    x = 137,357.46

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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.