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Finding the Fourth Proportional to 118,597.36, 177,965.88 and 43,770.16

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Solution

The fourth proportional to 118,597.36, 177,965.88 and 43,770.16 is: 65,681.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,597.36 : 177,965.88 = 43,770.16 : x
  2. Step 2: Convert to fraction form
    118,597.36/177,965.88 = 43,770.16/x
  3. Step 3: Cross multiply
    118,597.36x = 177,965.88 × 43,770.16
  4. Step 4: Simplify right side
    118,597.36x = 7,789,595,042.14
  5. Step 5: Solve for x
    x = 7,789,595,042.14/118,597.36
  6. Step 6: Final answer
    x = 65,681.02

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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.