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Finding the Fourth Proportional to 118,797.69, 163,940.76 and 71,051.04

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Solution

The fourth proportional to 118,797.69, 163,940.76 and 71,051.04 is: 98,050.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,797.69 : 163,940.76 = 71,051.04 : x
  2. Step 2: Convert to fraction form
    118,797.69/163,940.76 = 71,051.04/x
  3. Step 3: Cross multiply
    118,797.69x = 163,940.76 × 71,051.04
  4. Step 4: Simplify right side
    118,797.69x = 11,648,161,496.39
  5. Step 5: Solve for x
    x = 11,648,161,496.39/118,797.69
  6. Step 6: Final answer
    x = 98,050.40

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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.