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Finding the Fourth Proportional to 94,689.92, 130,625.28 and 61,964.96

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Solution

The fourth proportional to 94,689.92, 130,625.28 and 61,964.96 is: 85,481.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,689.92 : 130,625.28 = 61,964.96 : x
  2. Step 2: Convert to fraction form
    94,689.92/130,625.28 = 61,964.96/x
  3. Step 3: Cross multiply
    94,689.92x = 130,625.28 × 61,964.96
  4. Step 4: Simplify right side
    94,689.92x = 8,094,190,250.19
  5. Step 5: Solve for x
    x = 8,094,190,250.19/94,689.92
  6. Step 6: Final answer
    x = 85,481.01

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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.