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Finding the Fourth Proportional to 162,758.80, 244,138.20 and 103,636.90

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Solution

The fourth proportional to 162,758.80, 244,138.20 and 103,636.90 is: 155,455.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,758.80 : 244,138.20 = 103,636.90 : x
  2. Step 2: Convert to fraction form
    162,758.80/244,138.20 = 103,636.90/x
  3. Step 3: Cross multiply
    162,758.80x = 244,138.20 × 103,636.90
  4. Step 4: Simplify right side
    162,758.80x = 25,301,726,219.58
  5. Step 5: Solve for x
    x = 25,301,726,219.58/162,758.80
  6. Step 6: Final answer
    x = 155,455.35

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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.