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Finding the Fourth Proportional to 163,296.41, 225,354.83 and 90,700.47

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Solution

The fourth proportional to 163,296.41, 225,354.83 and 90,700.47 is: 125,169.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,296.41 : 225,354.83 = 90,700.47 : x
  2. Step 2: Convert to fraction form
    163,296.41/225,354.83 = 90,700.47/x
  3. Step 3: Cross multiply
    163,296.41x = 225,354.83 × 90,700.47
  4. Step 4: Simplify right side
    163,296.41x = 20,439,788,544.27
  5. Step 5: Solve for x
    x = 20,439,788,544.27/163,296.41
  6. Step 6: Final answer
    x = 125,169.86

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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.