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Finding the Fourth Proportional to 118,369.91, 177,632.55 and 43,490.68

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Solution

The fourth proportional to 118,369.91, 177,632.55 and 43,490.68 is: 65,264.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,369.91 : 177,632.55 = 43,490.68 : x
  2. Step 2: Convert to fraction form
    118,369.91/177,632.55 = 43,490.68/x
  3. Step 3: Cross multiply
    118,369.91x = 177,632.55 × 43,490.68
  4. Step 4: Simplify right side
    118,369.91x = 7,725,359,945.55
  5. Step 5: Solve for x
    x = 7,725,359,945.55/118,369.91
  6. Step 6: Final answer
    x = 65,264.56

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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.