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Finding the Fourth Proportional to 202,326.40, 303,489.60 and 97,091.20

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Solution

The fourth proportional to 202,326.40, 303,489.60 and 97,091.20 is: 145,636.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,326.40 : 303,489.60 = 97,091.20 : x
  2. Step 2: Convert to fraction form
    202,326.40/303,489.60 = 97,091.20/x
  3. Step 3: Cross multiply
    202,326.40x = 303,489.60 × 97,091.20
  4. Step 4: Simplify right side
    202,326.40x = 29,466,169,451.52
  5. Step 5: Solve for x
    x = 29,466,169,451.52/202,326.40
  6. Step 6: Final answer
    x = 145,636.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.