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Finding the Fourth Proportional to 177,348.48, 265,866.96 and 72,255.84

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Solution

The fourth proportional to 177,348.48, 265,866.96 and 72,255.84 is: 108,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,348.48 : 265,866.96 = 72,255.84 : x
  2. Step 2: Convert to fraction form
    177,348.48/265,866.96 = 72,255.84/x
  3. Step 3: Cross multiply
    177,348.48x = 265,866.96 × 72,255.84
  4. Step 4: Simplify right side
    177,348.48x = 19,210,440,523.05
  5. Step 5: Solve for x
    x = 19,210,440,523.05/177,348.48
  6. Step 6: Final answer
    x = 108,320.30

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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.