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Finding the Fourth Proportional to 118,670.96, 163,766.17 and 64,959.41

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Solution

The fourth proportional to 118,670.96, 163,766.17 and 64,959.41 is: 89,644.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,670.96 : 163,766.17 = 64,959.41 : x
  2. Step 2: Convert to fraction form
    118,670.96/163,766.17 = 64,959.41/x
  3. Step 3: Cross multiply
    118,670.96x = 163,766.17 × 64,959.41
  4. Step 4: Simplify right side
    118,670.96x = 10,638,153,781.16
  5. Step 5: Solve for x
    x = 10,638,153,781.16/118,670.96
  6. Step 6: Final answer
    x = 89,644.12

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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.