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Finding the Fourth Proportional to 162,809.30, 244,213.95 and 103,687.40

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Solution

The fourth proportional to 162,809.30, 244,213.95 and 103,687.40 is: 155,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,809.30 : 244,213.95 = 103,687.40 : x
  2. Step 2: Convert to fraction form
    162,809.30/244,213.95 = 103,687.40/x
  3. Step 3: Cross multiply
    162,809.30x = 244,213.95 × 103,687.40
  4. Step 4: Simplify right side
    162,809.30x = 25,321,909,519.23
  5. Step 5: Solve for x
    x = 25,321,909,519.23/162,809.30
  6. Step 6: Final answer
    x = 155,531.10

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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.