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Finding the Fourth Proportional to 240,628.75, 360,943.13 and 74,416.75

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Solution

The fourth proportional to 240,628.75, 360,943.13 and 74,416.75 is: 111,625.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,628.75 : 360,943.13 = 74,416.75 : x
  2. Step 2: Convert to fraction form
    240,628.75/360,943.13 = 74,416.75/x
  3. Step 3: Cross multiply
    240,628.75x = 360,943.13 × 74,416.75
  4. Step 4: Simplify right side
    240,628.75x = 26,860,214,669.43
  5. Step 5: Solve for x
    x = 26,860,214,669.43/240,628.75
  6. Step 6: Final answer
    x = 111,625.13

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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.