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Finding the Fourth Proportional to 273,870.40, 411,112.80 and 163,124.80

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Solution

The fourth proportional to 273,870.40, 411,112.80 and 163,124.80 is: 244,870.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,870.40 : 411,112.80 = 163,124.80 : x
  2. Step 2: Convert to fraction form
    273,870.40/411,112.80 = 163,124.80/x
  3. Step 3: Cross multiply
    273,870.40x = 411,112.80 × 163,124.80
  4. Step 4: Simplify right side
    273,870.40x = 67,062,693,277.44
  5. Step 5: Solve for x
    x = 67,062,693,277.44/273,870.40
  6. Step 6: Final answer
    x = 244,870.18

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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.