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Finding the Fourth Proportional to 117,211.88, 161,752.23 and 63,497.11

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Solution

The fourth proportional to 117,211.88, 161,752.23 and 63,497.11 is: 87,625.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,211.88 : 161,752.23 = 63,497.11 : x
  2. Step 2: Convert to fraction form
    117,211.88/161,752.23 = 63,497.11/x
  3. Step 3: Cross multiply
    117,211.88x = 161,752.23 × 63,497.11
  4. Step 4: Simplify right side
    117,211.88x = 10,270,798,419.19
  5. Step 5: Solve for x
    x = 10,270,798,419.19/117,211.88
  6. Step 6: Final answer
    x = 87,625.92

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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.