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Finding the Fourth Proportional to 240,742.35, 361,112.67 and 72,261.95

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Solution

The fourth proportional to 240,742.35, 361,112.67 and 72,261.95 is: 108,392.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,742.35 : 361,112.67 = 72,261.95 : x
  2. Step 2: Convert to fraction form
    240,742.35/361,112.67 = 72,261.95/x
  3. Step 3: Cross multiply
    240,742.35x = 361,112.67 × 72,261.95
  4. Step 4: Simplify right side
    240,742.35x = 26,094,703,898.34
  5. Step 5: Solve for x
    x = 26,094,703,898.34/240,742.35
  6. Step 6: Final answer
    x = 108,392.66

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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.