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Finding the Fourth Proportional to 118,021.55, 177,084.65 and 61,848.31

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Solution

The fourth proportional to 118,021.55, 177,084.65 and 61,848.31 is: 92,799.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,021.55 : 177,084.65 = 61,848.31 : x
  2. Step 2: Convert to fraction form
    118,021.55/177,084.65 = 61,848.31/x
  3. Step 3: Cross multiply
    118,021.55x = 177,084.65 × 61,848.31
  4. Step 4: Simplify right side
    118,021.55x = 10,952,385,134.78
  5. Step 5: Solve for x
    x = 10,952,385,134.78/118,021.55
  6. Step 6: Final answer
    x = 92,799.88

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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.