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Finding the Fourth Proportional to 118,279.28, 177,392.10 and 34,039.28

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Solution

The fourth proportional to 118,279.28, 177,392.10 and 34,039.28 is: 51,051.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,279.28 : 177,392.10 = 34,039.28 : x
  2. Step 2: Convert to fraction form
    118,279.28/177,392.10 = 34,039.28/x
  3. Step 3: Cross multiply
    118,279.28x = 177,392.10 × 34,039.28
  4. Step 4: Simplify right side
    118,279.28x = 6,038,299,361.69
  5. Step 5: Solve for x
    x = 6,038,299,361.69/118,279.28
  6. Step 6: Final answer
    x = 51,051.20

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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.