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Finding the Fourth Proportional to 117,212.67, 161,752.95 and 63,497.52

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Solution

The fourth proportional to 117,212.67, 161,752.95 and 63,497.52 is: 87,626.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,212.67 : 161,752.95 = 63,497.52 : x
  2. Step 2: Convert to fraction form
    117,212.67/161,752.95 = 63,497.52/x
  3. Step 3: Cross multiply
    117,212.67x = 161,752.95 × 63,497.52
  4. Step 4: Simplify right side
    117,212.67x = 10,270,911,177.68
  5. Step 5: Solve for x
    x = 10,270,911,177.68/117,212.67
  6. Step 6: Final answer
    x = 87,626.29

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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.