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Finding the Fourth Proportional to 118,616.70, 177,810.75 and 43,695.89

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Solution

The fourth proportional to 118,616.70, 177,810.75 and 43,695.89 is: 65,501.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,616.70 : 177,810.75 = 43,695.89 : x
  2. Step 2: Convert to fraction form
    118,616.70/177,810.75 = 43,695.89/x
  3. Step 3: Cross multiply
    118,616.70x = 177,810.75 × 43,695.89
  4. Step 4: Simplify right side
    118,616.70x = 7,769,598,972.82
  5. Step 5: Solve for x
    x = 7,769,598,972.82/118,616.70
  6. Step 6: Final answer
    x = 65,501.73

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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.