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Finding the Fourth Proportional to 118,100.08, 162,992.82 and 67,798

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Solution

The fourth proportional to 118,100.08, 162,992.82 and 67,798 is: 93,569.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,100.08 : 162,992.82 = 67,798 : x
  2. Step 2: Convert to fraction form
    118,100.08/162,992.82 = 67,798/x
  3. Step 3: Cross multiply
    118,100.08x = 162,992.82 × 67,798
  4. Step 4: Simplify right side
    118,100.08x = 11,050,587,210.36
  5. Step 5: Solve for x
    x = 11,050,587,210.36/118,100.08
  6. Step 6: Final answer
    x = 93,569.68

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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.