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Finding the Fourth Proportional to 177,056.64, 244,230.72 and 105,388.80

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Solution

The fourth proportional to 177,056.64, 244,230.72 and 105,388.80 is: 145,372.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,056.64 : 244,230.72 = 105,388.80 : x
  2. Step 2: Convert to fraction form
    177,056.64/244,230.72 = 105,388.80/x
  3. Step 3: Cross multiply
    177,056.64x = 244,230.72 × 105,388.80
  4. Step 4: Simplify right side
    177,056.64x = 25,739,182,503.94
  5. Step 5: Solve for x
    x = 25,739,182,503.94/177,056.64
  6. Step 6: Final answer
    x = 145,372.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.