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Finding the Fourth Proportional to 118,390.52, 177,580 and 43,504.90

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Solution

The fourth proportional to 118,390.52, 177,580 and 43,504.90 is: 65,255.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,390.52 : 177,580 = 43,504.90 : x
  2. Step 2: Convert to fraction form
    118,390.52/177,580 = 43,504.90/x
  3. Step 3: Cross multiply
    118,390.52x = 177,580 × 43,504.90
  4. Step 4: Simplify right side
    118,390.52x = 7,725,600,142
  5. Step 5: Solve for x
    x = 7,725,600,142/118,390.52
  6. Step 6: Final answer
    x = 65,255.23

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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.