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Finding the Fourth Proportional to 118,141.88, 177,294.89 and 48,021.26

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Solution

The fourth proportional to 118,141.88, 177,294.89 and 48,021.26 is: 72,065.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,141.88 : 177,294.89 = 48,021.26 : x
  2. Step 2: Convert to fraction form
    118,141.88/177,294.89 = 48,021.26/x
  3. Step 3: Cross multiply
    118,141.88x = 177,294.89 × 48,021.26
  4. Step 4: Simplify right side
    118,141.88x = 8,513,923,242.94
  5. Step 5: Solve for x
    x = 8,513,923,242.94/118,141.88
  6. Step 6: Final answer
    x = 72,065.25

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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.