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Finding the Fourth Proportional to 202,859.56, 279,878.20 and 116,816.72

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Solution

The fourth proportional to 202,859.56, 279,878.20 and 116,816.72 is: 161,167.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,859.56 : 279,878.20 = 116,816.72 : x
  2. Step 2: Convert to fraction form
    202,859.56/279,878.20 = 116,816.72/x
  3. Step 3: Cross multiply
    202,859.56x = 279,878.20 × 116,816.72
  4. Step 4: Simplify right side
    202,859.56x = 32,694,453,323.50
  5. Step 5: Solve for x
    x = 32,694,453,323.50/202,859.56
  6. Step 6: Final answer
    x = 161,167.92

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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.