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Finding the Fourth Proportional to 240,742.81, 361,113.31 and 72,262.41

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Solution

The fourth proportional to 240,742.81, 361,113.31 and 72,262.41 is: 108,393.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,742.81 : 361,113.31 = 72,262.41 : x
  2. Step 2: Convert to fraction form
    240,742.81/361,113.31 = 72,262.41/x
  3. Step 3: Cross multiply
    240,742.81x = 361,113.31 × 72,262.41
  4. Step 4: Simplify right side
    240,742.81x = 26,094,918,063.68
  5. Step 5: Solve for x
    x = 26,094,918,063.68/240,742.81
  6. Step 6: Final answer
    x = 108,393.34

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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.