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Finding the Fourth Proportional to 118,492.98, 177,809.64 and 43,665.57

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Solution

The fourth proportional to 118,492.98, 177,809.64 and 43,665.57 is: 65,524.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,492.98 : 177,809.64 = 43,665.57 : x
  2. Step 2: Convert to fraction form
    118,492.98/177,809.64 = 43,665.57/x
  3. Step 3: Cross multiply
    118,492.98x = 177,809.64 × 43,665.57
  4. Step 4: Simplify right side
    118,492.98x = 7,764,159,282.09
  5. Step 5: Solve for x
    x = 7,764,159,282.09/118,492.98
  6. Step 6: Final answer
    x = 65,524.21

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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.