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Finding the Fourth Proportional to 94,866.20, 130,910.21 and 52,422

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Solution

The fourth proportional to 94,866.20, 130,910.21 and 52,422 is: 72,339.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,866.20 : 130,910.21 = 52,422 : x
  2. Step 2: Convert to fraction form
    94,866.20/130,910.21 = 52,422/x
  3. Step 3: Cross multiply
    94,866.20x = 130,910.21 × 52,422
  4. Step 4: Simplify right side
    94,866.20x = 6,862,574,766.51
  5. Step 5: Solve for x
    x = 6,862,574,766.51/94,866.20
  6. Step 6: Final answer
    x = 72,339.51

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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.