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Finding the Fourth Proportional to 162,712.60, 244,287.60 and 103,809.40

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Solution

The fourth proportional to 162,712.60, 244,287.60 and 103,809.40 is: 155,853.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,712.60 : 244,287.60 = 103,809.40 : x
  2. Step 2: Convert to fraction form
    162,712.60/244,287.60 = 103,809.40/x
  3. Step 3: Cross multiply
    162,712.60x = 244,287.60 × 103,809.40
  4. Step 4: Simplify right side
    162,712.60x = 25,359,349,183.44
  5. Step 5: Solve for x
    x = 25,359,349,183.44/162,712.60
  6. Step 6: Final answer
    x = 155,853.63

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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.