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Finding the Fourth Proportional to 162,788.80, 244,150.80 and 78,548.80

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Solution

The fourth proportional to 162,788.80, 244,150.80 and 78,548.80 is: 117,807.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,788.80 : 244,150.80 = 78,548.80 : x
  2. Step 2: Convert to fraction form
    162,788.80/244,150.80 = 78,548.80/x
  3. Step 3: Cross multiply
    162,788.80x = 244,150.80 × 78,548.80
  4. Step 4: Simplify right side
    162,788.80x = 19,177,752,359.04
  5. Step 5: Solve for x
    x = 19,177,752,359.04/162,788.80
  6. Step 6: Final answer
    x = 117,807.57

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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.