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Finding the Fourth Proportional to 118,353.58, 177,539.64 and 39,467.86

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Solution

The fourth proportional to 118,353.58, 177,539.64 and 39,467.86 is: 59,204.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,353.58 : 177,539.64 = 39,467.86 : x
  2. Step 2: Convert to fraction form
    118,353.58/177,539.64 = 39,467.86/x
  3. Step 3: Cross multiply
    118,353.58x = 177,539.64 × 39,467.86
  4. Step 4: Simplify right side
    118,353.58x = 7,007,109,655.97
  5. Step 5: Solve for x
    x = 7,007,109,655.97/118,353.58
  6. Step 6: Final answer
    x = 59,204.88

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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.