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Finding the Fourth Proportional to 202,405.89, 279,343.82 and 168,354.30

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Solution

The fourth proportional to 202,405.89, 279,343.82 and 168,354.30 is: 232,348.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,405.89 : 279,343.82 = 168,354.30 : x
  2. Step 2: Convert to fraction form
    202,405.89/279,343.82 = 168,354.30/x
  3. Step 3: Cross multiply
    202,405.89x = 279,343.82 × 168,354.30
  4. Step 4: Simplify right side
    202,405.89x = 47,028,733,275.43
  5. Step 5: Solve for x
    x = 47,028,733,275.43/202,405.89
  6. Step 6: Final answer
    x = 232,348.64

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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.