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Finding the Fourth Proportional to 118,524.55, 177,703.74 and 43,634.95

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Solution

The fourth proportional to 118,524.55, 177,703.74 and 43,634.95 is: 65,421.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,524.55 : 177,703.74 = 43,634.95 : x
  2. Step 2: Convert to fraction form
    118,524.55/177,703.74 = 43,634.95/x
  3. Step 3: Cross multiply
    118,524.55x = 177,703.74 × 43,634.95
  4. Step 4: Simplify right side
    118,524.55x = 7,754,093,809.71
  5. Step 5: Solve for x
    x = 7,754,093,809.71/118,524.55
  6. Step 6: Final answer
    x = 65,421.84

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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.