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Finding the Fourth Proportional to 293,348.80, 439,731.60 and 135,301.60

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Solution

The fourth proportional to 293,348.80, 439,731.60 and 135,301.60 is: 202,817.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,348.80 : 439,731.60 = 135,301.60 : x
  2. Step 2: Convert to fraction form
    293,348.80/439,731.60 = 135,301.60/x
  3. Step 3: Cross multiply
    293,348.80x = 439,731.60 × 135,301.60
  4. Step 4: Simplify right side
    293,348.80x = 59,496,389,050.56
  5. Step 5: Solve for x
    x = 59,496,389,050.56/293,348.80
  6. Step 6: Final answer
    x = 202,817.91

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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.