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Finding the Fourth Proportional to 163,490.67, 245,246.94 and 63,644.40

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Solution

The fourth proportional to 163,490.67, 245,246.94 and 63,644.40 is: 95,470.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,490.67 : 245,246.94 = 63,644.40 : x
  2. Step 2: Convert to fraction form
    163,490.67/245,246.94 = 63,644.40/x
  3. Step 3: Cross multiply
    163,490.67x = 245,246.94 × 63,644.40
  4. Step 4: Simplify right side
    163,490.67x = 15,608,594,348.14
  5. Step 5: Solve for x
    x = 15,608,594,348.14/163,490.67
  6. Step 6: Final answer
    x = 95,470.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.