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Finding the Fourth Proportional to 202,176.70, 279,003.84 and 111,532.87

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Solution

The fourth proportional to 202,176.70, 279,003.84 and 111,532.87 is: 153,915.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,176.70 : 279,003.84 = 111,532.87 : x
  2. Step 2: Convert to fraction form
    202,176.70/279,003.84 = 111,532.87/x
  3. Step 3: Cross multiply
    202,176.70x = 279,003.84 × 111,532.87
  4. Step 4: Simplify right side
    202,176.70x = 31,118,099,016.22
  5. Step 5: Solve for x
    x = 31,118,099,016.22/202,176.70
  6. Step 6: Final answer
    x = 153,915.36

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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.