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Finding the Fourth Proportional to 117,347.58, 161,939.25 and 63,632.46

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Solution

The fourth proportional to 117,347.58, 161,939.25 and 63,632.46 is: 87,812.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,347.58 : 161,939.25 = 63,632.46 : x
  2. Step 2: Convert to fraction form
    117,347.58/161,939.25 = 63,632.46/x
  3. Step 3: Cross multiply
    117,347.58x = 161,939.25 × 63,632.46
  4. Step 4: Simplify right side
    117,347.58x = 10,304,592,848.06
  5. Step 5: Solve for x
    x = 10,304,592,848.06/117,347.58
  6. Step 6: Final answer
    x = 87,812.57

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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.