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Finding the Fourth Proportional to 117,064.94, 161,548.29 and 63,348.98

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Solution

The fourth proportional to 117,064.94, 161,548.29 and 63,348.98 is: 87,420.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,064.94 : 161,548.29 = 63,348.98 : x
  2. Step 2: Convert to fraction form
    117,064.94/161,548.29 = 63,348.98/x
  3. Step 3: Cross multiply
    117,064.94x = 161,548.29 × 63,348.98
  4. Step 4: Simplify right side
    117,064.94x = 10,233,918,584.50
  5. Step 5: Solve for x
    x = 10,233,918,584.50/117,064.94
  6. Step 6: Final answer
    x = 87,420.87

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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.