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Finding the Fourth Proportional to 202,406.39, 279,344.51 and 168,354.80

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Solution

The fourth proportional to 202,406.39, 279,344.51 and 168,354.80 is: 232,349.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,406.39 : 279,344.51 = 168,354.80 : x
  2. Step 2: Convert to fraction form
    202,406.39/279,344.51 = 168,354.80/x
  3. Step 3: Cross multiply
    202,406.39x = 279,344.51 × 168,354.80
  4. Step 4: Simplify right side
    202,406.39x = 47,028,989,112.15
  5. Step 5: Solve for x
    x = 47,028,989,112.15/202,406.39
  6. Step 6: Final answer
    x = 232,349.33

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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.