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Finding the Fourth Proportional to 162,941.60, 244,606.80 and 91,920.80

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Solution

The fourth proportional to 162,941.60, 244,606.80 and 91,920.80 is: 137,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,941.60 : 244,606.80 = 91,920.80 : x
  2. Step 2: Convert to fraction form
    162,941.60/244,606.80 = 91,920.80/x
  3. Step 3: Cross multiply
    162,941.60x = 244,606.80 × 91,920.80
  4. Step 4: Simplify right side
    162,941.60x = 22,484,452,741.44
  5. Step 5: Solve for x
    x = 22,484,452,741.44/162,941.60
  6. Step 6: Final answer
    x = 137,990.87

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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.