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Finding the Fourth Proportional to 339,967.20, 509,259.60 and 173,848.80

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Solution

The fourth proportional to 339,967.20, 509,259.60 and 173,848.80 is: 260,419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,967.20 : 509,259.60 = 173,848.80 : x
  2. Step 2: Convert to fraction form
    339,967.20/509,259.60 = 173,848.80/x
  3. Step 3: Cross multiply
    339,967.20x = 509,259.60 × 173,848.80
  4. Step 4: Simplify right side
    339,967.20x = 88,534,170,348.48
  5. Step 5: Solve for x
    x = 88,534,170,348.48/339,967.20
  6. Step 6: Final answer
    x = 260,419.74

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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.