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Finding the Fourth Proportional to 240,003.20, 359,083.20 and 157,059.20

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Solution

The fourth proportional to 240,003.20, 359,083.20 and 157,059.20 is: 234,985.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,003.20 : 359,083.20 = 157,059.20 : x
  2. Step 2: Convert to fraction form
    240,003.20/359,083.20 = 157,059.20/x
  3. Step 3: Cross multiply
    240,003.20x = 359,083.20 × 157,059.20
  4. Step 4: Simplify right side
    240,003.20x = 56,397,320,125.44
  5. Step 5: Solve for x
    x = 56,397,320,125.44/240,003.20
  6. Step 6: Final answer
    x = 234,985.70

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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.