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Finding the Fourth Proportional to 118,798.69, 163,942.14 and 71,052.04

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Solution

The fourth proportional to 118,798.69, 163,942.14 and 71,052.04 is: 98,051.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,798.69 : 163,942.14 = 71,052.04 : x
  2. Step 2: Convert to fraction form
    118,798.69/163,942.14 = 71,052.04/x
  3. Step 3: Cross multiply
    118,798.69x = 163,942.14 × 71,052.04
  4. Step 4: Simplify right side
    118,798.69x = 11,648,423,488.97
  5. Step 5: Solve for x
    x = 11,648,423,488.97/118,798.69
  6. Step 6: Final answer
    x = 98,051.78

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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.