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Finding the Fourth Proportional to 118,044.24, 162,894.96 and 67,740

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Solution

The fourth proportional to 118,044.24, 162,894.96 and 67,740 is: 93,477.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,044.24 : 162,894.96 = 67,740 : x
  2. Step 2: Convert to fraction form
    118,044.24/162,894.96 = 67,740/x
  3. Step 3: Cross multiply
    118,044.24x = 162,894.96 × 67,740
  4. Step 4: Simplify right side
    118,044.24x = 11,034,504,590.40
  5. Step 5: Solve for x
    x = 11,034,504,590.40/118,044.24
  6. Step 6: Final answer
    x = 93,477.70

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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.