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Finding the Fourth Proportional to 118,664.98, 163,776 and 67,677.82

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Solution

The fourth proportional to 118,664.98, 163,776 and 67,677.82 is: 93,405.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,664.98 : 163,776 = 67,677.82 : x
  2. Step 2: Convert to fraction form
    118,664.98/163,776 = 67,677.82/x
  3. Step 3: Cross multiply
    118,664.98x = 163,776 × 67,677.82
  4. Step 4: Simplify right side
    118,664.98x = 11,084,002,648.32
  5. Step 5: Solve for x
    x = 11,084,002,648.32/118,664.98
  6. Step 6: Final answer
    x = 93,405.84

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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.