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Finding the Fourth Proportional to 118,296.54, 177,244.32 and 71,451

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Solution

The fourth proportional to 118,296.54, 177,244.32 and 71,451 is: 107,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,296.54 : 177,244.32 = 71,451 : x
  2. Step 2: Convert to fraction form
    118,296.54/177,244.32 = 71,451/x
  3. Step 3: Cross multiply
    118,296.54x = 177,244.32 × 71,451
  4. Step 4: Simplify right side
    118,296.54x = 12,664,283,908.32
  5. Step 5: Solve for x
    x = 12,664,283,908.32/118,296.54
  6. Step 6: Final answer
    x = 107,055.40

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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.