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Finding the Fourth Proportional to 117,999.72, 162,840.74 and 67,013.52

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Solution

The fourth proportional to 117,999.72, 162,840.74 and 67,013.52 is: 92,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,999.72 : 162,840.74 = 67,013.52 : x
  2. Step 2: Convert to fraction form
    117,999.72/162,840.74 = 67,013.52/x
  3. Step 3: Cross multiply
    117,999.72x = 162,840.74 × 67,013.52
  4. Step 4: Simplify right side
    117,999.72x = 10,912,531,186.80
  5. Step 5: Solve for x
    x = 10,912,531,186.80/117,999.72
  6. Step 6: Final answer
    x = 92,479.30

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1.5x scale

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.