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Finding the Fourth Proportional to 165,601.90, 248,281.35 and 65,712.70

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Solution

The fourth proportional to 165,601.90, 248,281.35 and 65,712.70 is: 98,520.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,601.90 : 248,281.35 = 65,712.70 : x
  2. Step 2: Convert to fraction form
    165,601.90/248,281.35 = 65,712.70/x
  3. Step 3: Cross multiply
    165,601.90x = 248,281.35 × 65,712.70
  4. Step 4: Simplify right side
    165,601.90x = 16,315,237,868.15
  5. Step 5: Solve for x
    x = 16,315,237,868.15/165,601.90
  6. Step 6: Final answer
    x = 98,520.84

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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.