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Finding the Fourth Proportional to 163,039.20, 244,558.80 and 140,488.80

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Solution

The fourth proportional to 163,039.20, 244,558.80 and 140,488.80 is: 210,733.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,039.20 : 244,558.80 = 140,488.80 : x
  2. Step 2: Convert to fraction form
    163,039.20/244,558.80 = 140,488.80/x
  3. Step 3: Cross multiply
    163,039.20x = 244,558.80 × 140,488.80
  4. Step 4: Simplify right side
    163,039.20x = 34,357,772,341.44
  5. Step 5: Solve for x
    x = 34,357,772,341.44/163,039.20
  6. Step 6: Final answer
    x = 210,733.20

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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.